"If it feels bad it's censorship" is not a particularly useful definition of 'censorship'. It should give you pause that most messageboard complaints about 'censorship' revolve around it - you never see someone passionately argue how their top comment (with page-consuming thread hanging off it) is 'censoring' other viewpoints.
Why would someone complain about their comment being the top comment? They are the most popular person at that point.
But doesn't that imply that you're entitled to a response? And why would you say there's no rationale? It might not be a rationale that you like, but there certainly is one; your post was either violating the guidelines or wasn't contributing to the conversation.
"Why would someone complain about their comment being the top comment? They are the most popular person at that point."
That viewpoint is part of the problem; votes aren't supposed to be about popularity.
Most people are unable to decouple their sense of self-worth from the public perception of themselves. It takes a great deal of introspection and self-discipline to detach in the manner described, and even then, it stings at first before the brain kicks in to post-hoc rationalize the response. It's how human beings are wired and a few years of deep thought are not going to change millenia of evolutionary responses.
As to your specific points:
> Would you assume I'm right-wing if I do not use politically correct terminology?
Frankly, yes. Politically correct speech appears to be today's shibboleth[0].
> Will slowing down change my world-view or simply the language I use to express it?
Slowing down a poster will reduce their ability to express their viewpoint, diluting it among other posters.
I would, because it implies that your desire to not change how you speak is more important to you than making others feel comfortable.
These people can only exist in a bubble though. Most people outside that bubble are laughing at them.