Quoted from frogman70:
What would anyone else on here do?
That's easy, just ignore it. Someone making a bitching fake ad on Craigslist means nothing to anyone. Either they want your Star Wars pin or they don't. I think you priced it maybe a little high, but the photos show it really nice and clean, so maybe it just means waiting for the right collector. I just don't see $3600 as a "fast sale". Doesn't mean you're trying to rip anyone off.
Personally though I think the DE Star Wars doesn't really have a ton of collector appeal, as in to Star Wars fans, not pinball people. Speaking as a Star Wars collector myself the biggest turnoff is the horrible fake MIDI music.
So you're kind of left with trying to sell a nice Data East pin. That can take time, the brand doesn't make people jump. All there is to it.