None of the topics mentioned fall under these categories:
Therefore, the general definition applies:
“Comment Frenzy”, “Never Ending Story”, “Stupidest question ever”, and “Useless Facts” easily passes both tests.
AMAs immediately fail the second condition. The creator of the AMA may simply not be around anymore or is uninterested in continuing it.
“What was your most mentionworthy moment on this server?” is in the gray area.