Well, one can supose that if a member takes the time to post a source here (a moderator, no less), he/she has estimated that it was a worthwhile addition, not just anything-to-up-my-post, count even at the cost of lowering the signal-to-noise ratio, like too many newbies do.
As a personal opinion, if a source is known to have zero value, then it has no place on spf.
Maybe in the Bar if it was somehow entertaining.
The signal-to-noise ratio is the most valuable asset of this forum, and it is better nurtured ex ante than after the fact. And frankly, --as a general observation unrelated to the OP--, it is not going up at the moment. I'd plead that we try to watch it and refrain from posting anything less than professional and constructive, at least in the Projects and General sections. The Bar and the Speculation sections are the outlet for the rest, if it needs one.