The spammers have been hitting the Tips pretty hard
over the past few weeks; it's up to two or three spam
tips per day. While the management seems to be keeping
on top of it, deleting the tips fairly promptly, they
are still polluting the tip RSS feed. I know the
website states that the choice of no authentication for
tips is deliberate; but a CATCHPA would provide an
obstacle to spammers without removing tip anonymity.