They will have to keep it open for all permanently because OnlyOffice is published under a AGPL v.3 license. Any derivative work needs to have the same license meaning the code needs to stay public. They dont have a choice but I don’t think they would close it down every anyway

Well if you never found useful information on /r/Piracy than thats on you because the link you shared is literaly a copy of the Wiki/Megathread from /r/Piracy.