Here's a new double rant, particularly related to poor netiquette on this forum:
3. People who post wanting particular things, receive offers of the exact thing requested, and then ignore the responses, merely posting "still looking". Try "Thank you, not exactly what I was looking for", followed by some more detail so people don't waste their time offering you things when you yourself don't even seem to know what you want.
Notice a pattern here, you-know-who-you-are?
Add low ballers to that. Say you have something listed for $50 shipped, which is more than fair, and they ask if you'll take $25 shipped for it. Really? GTFOOH you cheap ass mofo. Stop wasting people's time if you can't afford it.