Im wondering if moderators have the ability or the authority to close to delete useless or spamming topics like in this situation ? or maybe the forum support democracy.
You could hit the "report to moderator" button and add a comment on why you believe this thread should be locked (say, 0 value contribution) and wait to see whether any mod agrees with that;
when in doubt, report. It may be a long shot, but you lose nothing by doing so.
is there any worthy signature campaign going on like Yobit?
LMAO, this must be the most hilarious thing I've read this week