Howdy clr, any posts deleted are actually not deleted from the site teams view. I went back all the way to the first of June and the only one of your posts deleted that I saw, was where you accidently posted twice in this thread, which the duplicate post was removed:
2016 Sanibel 3601 - Manually Extend/Retract Bedroom Slide Out?
I am not seeing anything else as far as posts. Do you have a specific thread (or posts) you can point out, and I'll do more research on it?
Now we move threads a lot, to the appropriate subforum. However, with a moved thread, the posts are still intact, and should still show up in your posting history.
Instead of using the portal button, try the "quick links" dropdown box and then "your posts" to see if that changes anything.