Apparently there are a lot of old link-only answers on math.stackexchange and recently they seem to be clogging the low quality queue. I have two questions related to that.
Has there been a change to the system so that these are now recognized automatically and put in queue, or is there actually someone deliberately flagging all these old answers (even going back to 2010)?
What is the right course of action for these very old posts? I suppose with today's standards they should be deleted, but back then they seemed fine-ish. There is also very little hope that the authors come back to rectify their answers, so a link-only answer is still technically better than no answer at all, even if the link is obsolete one day.