Hello, I am very familiar with bolt, a member since? 2009? the Owner is known as Meeps, also a Admin named Veg, is very cool.
Yes sometimes registration is closed, because security,, not just hacks, but many of us there would rather have a small forum with links that stay up a long time then many members of which spam, virii and bad atitude are prevalent, (speaking for myself,,as I have been told)
uhm Bolt is a fine site to me reminds me of the old bulletin boards,, and Mobilism is cool too,, Bolt is different in a bit tighter security and the way we all used to use one file locker,, (which now we do not ,,which sucks,, but adds backup redundancy,,) hmm
I do like the ebooks, audiobooks, and apps,,(os area is nice too)
There is a clear division of labor among admins,,, and they all cut spam well,,,
many small things are nice, also,, coding links out and adding symantecs in the pages to make spiders from google and others get stuck,, (makes is better if your a member ,, the files stay up longer,, I have seen some links last ,, years,,,)