Welcome!

This official thread states the posting restrictions on the forum at this time, which, as you've discovered, is indeed determined by your current level in the game - at level 32 you're limited sadly to only being able to create one new thread a day, and make up to five posts a day. This resets each day though, and also does not affect posting in the 'New Players' and support sections.

Although it seems rather limiting, SE made these changes due to spam problems back on the Beta Tester forum so they probably felt this was the best way to prevent that happening in the official forum as well.

Hopefully, this has helped!