Keep us updated. The limit on posts is probably related to the spammer posts we were seeing on this forum this past year.
I don’t know if you get any automated messages from the ‘forum bot’ with a welcome message and such but I ended up working my way through a few forum tutorials and completing tasks for ‘badges’ and upped my rank over a little bit of time.
You could also try reaching out to Admin or Moderator for any related questions to posting limits, etc.