Re: did you cancel my posts ?
You probably were marked, or at least your post was marked, as spam, as coming from a bozo. This is not an insult. It is the actual term that bbPress applies to suspected spammers. This has happened to me twice in the past.
If this happens again, or seems permanent, you should contact Andy or jjj as whenever I log into bbPress admin, it does not show me the “bozo” members. So, I have no way of changing the status.
But, since you are obviously posting right now, the issue was more than likely the system marking that particular post as probable spam. This is just a hunch.