If someone removes your posts because they feel they're in the wrong place or break the rules, there is no requirement that they PM you. In fact, I believe our guidelines say posts may be removed without notice.
This doesn't mean they always will, but if your post disappears you should give some thought into why it was considered inappropriate rather than getting upset about it.
In this case I've checked which post was removed, and the grammar is almost unreadable, and all you do is ask for someone to double playback speed in mpegplayer by disabling sound. Feature requests don't belong in the forums, which is something I've said many, many times, so I imagine that was why someone decided to remove the post.