Do DMCA bots check f95 forum posts or PixelDrain database? If it's the later, I think password protection would help. Simple "hydrafxxx" in line with most artists password protecting their work with just their name.
there are some Artists/Authors that do check F95 very frequently and are very dmca prone..there are a few i dont do this type of stuff for just because of that, a password does not much while yes its a little bit more secure too..but its more an annoyance than protection, its an annoying battle for uploader, the Artists/Authors are well within their right to do so, dont get me wrong...but its still annoying..
Then there are Artists/Authors who instead participate in F95 and are active in chatting and also say that this platform helped them more than it did damage, a lot of them are also pretty well known. Out of respect for those (while also disrespecting them by uploading their stuff, kinda hypocritical i know), i dont include ever things like for example tutorials/models/blender files since those are most of the time the high-tier things. I know other people will do it instead...but its more a principle of mine.
As for the zip thing, its more a pixeldrain thing than it is a Artist/Author thing..