"Katsuki?! why the hell are you deleting everything?!" Sorry it's just coincidental...! 

Also I guess you could say I just don't want the old things I posted to be online anymore.

 You can talk about it; its 100% locked in a archive somewhere, but that would be hard to find... aka I just don't like my old stuff lol

Also I'm not in the MHA community anymore, and I don't really want to associate myself with the content or the community. I met some lovely people there, but I'm just not interested in it anymore due to problems I have with the original content. I realized the problems with MHA in general and have lost interest in it. I won't deny that it is a wonderful series, however.

As for other stuff... well, I just don't want them to be online! Some things I'm fine with being online will be left on the book though, so you can see my progress.

TLDR; I'm not interested in MHA anymore, and some things will be deleted.