something like that could, once again, be achieved by a github pages thingy.
like, make a github account named botbclub or something, create a botbclub.github.io repository for the main site, and then make another gh-pages repository for each botbr that only whoever runs it and the botbr in question can commit to.
you can even make all these repositories private (i think) so it can still be tied to botb for the most part, and separate repositories, if they use gh-pages, are accessible and interlinked anyway (say you have a repository named "vilxdryad", you can access it @ botbclub.github.io/vilxdryad just like that).
as much as i liked botb club when it was a thing, i don't think puke has the time and resources to make such a niche feature request work, and if more than one person wants this to be a thing i think the most we can do, out of respect for puke's time, is to mobilize ourselves to use things that already exist (or build our own solutions if feasible (but in this case it isn't)).
maybe i'm wrong and it's actually super simple to implement, and in which case the only thing i ask is to restrict features to higher botbr levels (create your own page at level 8, ability to upload images at level 18, total space increments for each level you gain so the longer you're on the site the more space you can use for your dingle, etc. not suggesting these exact things, but just as an idea of what i mean) to prevent abuse (ppl signing up to just spam the site with stuff) and to make leveling up mean something more i suppose.
i'm not against the idea, just to be clear, i do think if it happens it'd be cool, but my point moreso is we can make it happen ourselves without needing puke to spend time and resources on yet another feature, man's busy as is.