Is it an interesting idea for posting on anon to result in burning anon tokens? 

I imagine all sorts of more complicated mechanics can be built. Eg burning more tokens if you're posting an ad,  burning more tokens if your post gets censored/moderated etc. 

Wary of trying to turn this token into a Thing With Mechanisms

Not commenting on this specific idea but just in general. Feels like an urge one gets when a coin starts off and you start to imagine what it could become and want to make it Real because a standalone memecoin isn’t Real Enough

Even with anoncast — you don’t want to think of ANON as “the anoncast token”, you want to think of it as a product built by the ANON community (well, kartik, but ykwim)

That's a great perspective, focusing on the community behind the product rather than just the token itself. Keep up the good work!