I'm sorry for the misunderstanding. We don't automatically screen all proxies. We just have no way to distinguish between people using similar IPs, so if you're innocently posting from an IP that resembles a troll's, you may end up being screened as well. There's really no way for us to avoid that. Before we used IPs, we screened based on content and writing style, and inevitably we'd screen some-momentarily-wanky-but-not-actual-troll nonnies alongside the trolls because we simply don't have any precision tools for this. We do screen benign comments we think may be coming from trolls because we don't want them to use this space at all, even if they sometimes have normal conversations. I think in this instance you probably just had the wrong IP at the wrong time.

I hope that helps.