There are currently 41 mods for this board nyRednek, if they were seriously acting in such a way as to censor opinions they did not like - then given that each likely has different things that they do not like there would be almost no posts whatsoever on this board.
Moderating/Administrating a forum involves not just formulating appropriate rules and monitoring for potential infractions, it involves the subjective comprehension of content and the attempt to ensure that subjective influences on your decision to excise designated forum powers adhere to the rules and to the board's norms, which on RF (not always the case for every forum) includes doing one's best to ensure that it is an objectively valid reason for intervention. This includes comparison to established norms, so for example on a board that has little formal intervention in general, is likely to have moderators that are more inclined towards less intervention, handling things informally and so forth. There are also likely processes that need to be met, such as having more than one moderator agree on a course of action, go through a warning process etc
Green forums convey a set of norms more conducive to conflict (note that not all conflict is bad, though we tend to view it as such) than blue or purple, not merely in rules but in expectations on members and on staff. It is therefore quite reasonable to expect that infractions or disruptions in a purple forum might be dealt with more quickly and more harshly than in a blue or green. Of course infractions are still to be dealt with, it is merely that a different approach and mindset towards intervention is adopted depending on the context in which it occurs.