@LMAO is flooding the site with random communities because they’re salty about being banned for claiming too many community names. They claim they’re trying to “fuck your entire site up” but I imagine it’s a relatively quick fix to delete all the communities they’re creating, LMAO.
It has similar function as “+”
email@gmail.com e.mail@gmail.com em.ail@gmail.com ema.il@gmail.com emai.l@gmail.com etc.