I believe if you are posting in a self-moderated thread and your post is deleted by OP/self-moderator then you will not be notified and your post will disappear in the wind. Sometimes there is no reason, other than the OP not liking what you have to say.
did this change at some point? i've had posts deleted in self-moderated threads and received this PM afterwards:
A reply of yours, quoted below, was deleted by the starter of a self-moderated topic. There are no rules of self-moderation, so this deletion cannot be appealed. Do not continue posting in this topic if the topic-starter has requested that you leave.
You can create a new topic if you are unsatisfied with this one. If the topic-starter is scamming, post about it in Scam Accusations.
Yesterday I posted some responses to the topics but today I found that number of posts I did yesterday were reduced. It looks like some of the posts were deleted. How can I know which of my posts got deleted and why?
a few months back, moderators were deleting lots of threads. that seems to have calmed down recently, but when that happens, the threads just disappear and so do all of your posts. you won't receive a PM like above.