Rentry is a pastebin site that people often use as a personal website builder, it's attracted a community & a bit of a culture along with it of mostly young teenagers. The "rentry community" tends to jump from ask site to ask site looking for a place where they can receive feedback for their links, but sites (like neospring today) keep shutting down causing people to re-migrate. It has a bit of a reputation for being toxic but really it is just a bunch of kids buying and selling links and decorating them to decide who's the coolest.