I just posted a topic with suggestions in Help and Support and it is gone?

Most likely it's waiting for moderation.

Thank you! It was.

It seems like my login expired while I was composing the message and the pending Guest post was not visible to non-moderators so it looked lost.

This also explains why I thought I lost a post long ago when I first started using Tixati and really liked the fact you could post thanks and feedback without creating an otherwise useless forum account; I wanted to take a moment to commend the forums for continuing this policy and the moderators for their time looking at more spam than I could handle.