At one point he simply let's one of his enemies live for no apparent reason when he could easily have had him killed by the Blood Emperor watching his back.
They sent a group to kidnap 2 of his wives and their newborns and setup an ambush to kill him. After killing most of them the son of the Heavenly Emperor arrives to kill him but, the Blood Emperor comes out to kill them instead however LF just let's them leave.
It makes zero sense other then to drag the story out and even the Blood Emperor doesn't agree. There was no threat from the Heavenly Emperor because at that point in the story the Blood Emperor was at peak strength which was equal or greater then the Heavenly Emperor who was severely injured from an earlier battle. Everyone knows this but, LF the cockroach creator just let's him leave instead of killing him.

Then once again that same son tries to kill Lin Feng when he's trying to secure the Chu family to his side. What does Ling Feng do? His opponent uses his so called sure kill move and after Lin Feng undergoes a breakthrough, instead of killing him in retaliation he simply lets him leave like a bitch.

Later one of the cockroaches kidnaps his Grandson with the help of someone who was using the situation because he wanted to form an alliance with Ling Feng. He did not get involved with helping the cockroach and allowed Ling Feng and him to settle things on their own. So what does Ling Feng do? He abandons him and lets him live.

Over and over he has seen that there is always a way for someone to come back from being killed or abandoned and yet the idiot decided once again to leave his enemy alive.

After being resurrected you would think that he learned his lesson from the previous cockroach who orchestrated his death but, this author just ends up destroying a good character for a lame fan fiction. Over and over his past enemies come back to cause trouble and the idiot just keep and repeating the same mistakes.

This author ends up ruining part of the ending of book 1 for Huo Shi Yun and Mu Yun.

Book 1 ending for Huo Shi Yun:
"A thousand years, you're so silly." Lin Feng walked up to her and took her in his arms. Huo Shi Yun shivered. She had never felt so happy in her life. How painful, a thousand years of pain! At that moment, she finally felt happy, and she couldn't stop crying uncontrollably.

At the end of book 1 after searching for Lin Feng for 1000 years they are finally reunited But, apparently that meant nothing to LF as we never hear anything in book 2 about her.

Book 1 ending for Mu Yun:
"Mu Yun finished healing people and she sat down next to a tree. She looked nostalgic.

At that moment, someone brought a chair over to her and sat down next to Mu Yun. She turned her head and looked at him.

She didn't want to stay away from him, ever again.

Mu Yun had been in the tribe for a thousand years, she had never left even for one day. On that day, she finally left with a young man. Nobody blamed her. They just hoped she'd have a happy life."

Unfortunately, she doesn't get to be happy. This ending implies that she will finally be with LF however, after he takes her with him he apparently never accepts her.
We see her again when he returns to back to his home world were now she runs her own sect of healers. He is unconscious at the time but, she helps heal him and then asks for them not to tell him she helped.

So we're to believe he showed up to take her away after she waited 1000 years and after that he ditches her? C'mon now! That is not something LF would have done but, because that's how the new author wrote it, LF comes off looking like a d*ck. If he was not going to accept her then he never would have taken her away.

This novel even makes Lin Feng into a real d*ck. Over and over we have seen him come to the defense of female friends and/or loved ones whenever they are being forced into a relationship with someone they do not love and yet, here in Book 2 he basically manipulates/forces a girl to have to accept his friend as a potential partner because he doesn't want her chasing him.

This girl is the last Inheritor of an Ancient Dragon Sect and she originally chose LF as her future husband to help revitalize her sect. She does not try to pressure him because she knows he is trying to keep his distance so as to not get her hopes up as he already has many wives.

First he offers her help by introducing her to Some Dragon's he knows to help her with Recreating The Sect she is an inheritor for.

He tells her that she can have an alliance with his city so her Sect will have it's own region like all the Ancient sects that are coming out of hiding.

However, when his friend tells him he likes the girl and would like to pursue her LF ends up basically putting her in a position where she is forced to accept the feelings of his friend even though the one she cares about is LF.

When the time comes for her to Setup her Sect he tells her he will not form an alliance with her unless she can form another alliance with another Powerful Sect or City. He does this knowing that the only option for her is his friend who with LF's help, setup this little scheme to put pressure on the girl to accept his offer for an alliance. She does not want to accept because she knows this guy has feelings for her and she has feeling for LF but, LF knows that her creating her Sect is very important to her so He puts her in a situation where she has no choice but, to accept the alliance thus giving LF's friend the impression that she may accept him.

She ends up getting hurt by LF and tries to convince herself to move on but, at the end of the day LF comes off looking like an asshole for manipulating her.