My issue with craigslist is when a seller uses a blind e-mail that craigslist supplies so the seller can remain anonymous. The problem is; sellers have their e-mail boxes set so tight, that replies are considered spam and are either deleted, sent to the junk folder, or worse, immediately blocked.
The poor seller, unaware that they are screening their e-mails too tight, I probably sitting at home wondering why no one replies to their ad even after reducing their price several times down to 50%.
Ha! I've tracked down sellers like this, figured out how to contact them, (I'm a stalker, o.k.?) and told them to check their junk, trash or blocked folders. What a hoot!!