hides posts that are not selected with the tickbox, for capping
Thanks for the comment. I've fixed the code as you mentioned and changed the @include as you suggested; I had no preference, and narrower is almost always gonna be better.
I want to say that at some point my include with the indent worked, but I'm not sure.
Small Userscript header bug
The script performs great, and works on 4chan. However there is a small issue with the userscript header, there are spaces before all the userscript header //@ lines, which results in incorrect header parsing. Script is loading on all sites (*) as a result, and the namespace, description, and likely all other lines in the header are not loaded. Additionally, I would recommend having the @include be *://boards.4chan.org/*/thread/* (but that's personal preference, I'm just nit picking on that one).