The roach motel of wiki hosting: they check you in, but they don'
t let you check out. They promise to host your wiki for free, but then they plaster it with intrusive advertising, restrictive rules and unsightly reskins. And, when you want to leave their site for good, you will realise that you could not as the mentally unstable staff in their site would harass you, threatening to
leak your IP address,
email address, as
well as any other personal information that you had once given to the site. As icing on the cake, you would also be forced to rejoin their platform due to domain duplicate penalties, to get them more
advertisement views and to feed them with 𝘮𝘰𝘳𝘦 information which they would later use against you to prevent you from leaving.