WTF happened? My post disappeared!

I posted a thread about the links between Secretary of State John Kerry and the Georgia Guidestones.

When writing the post, question marks that I didn't add kept popping up after sentences automatically, replacing my periods. This happened about three times.

Then, my post completely disappeared from the GLP forum within seconds after I posted it; yet, when I search for it the post still comes up.

For about 15 minutes after that, only old forum posts showed up on my computer, it looked like the GLP forum had been completely scrubbed on my computer!

Did I say something wrong?