You should try posting critical comments about Monero or Monero team or community members there, or ones stating that Dash or some other coin is superior, or anything of the sort, as long as it relates to speculation on Monero and isn't personal attacks (or use red text). Or you could just browse the thread and find thousands already that didn't and don't get deleted, including many by illodin or a few other Dash supporters who a regulars there. Or you could try reviewing the deleted posts that get requoted in tiny font and find even one that is on topic and was deleted for being anti-Monero.

Monero has no fear of criticism or contrary opinions (or more specifically, I don't, since I can't speak for the whole community) and they are welcome on my thread.