I think emotions run high because people perceive that those who use illegal bikes will ultimately cause problems for those who don't. The illegal users tend not to understand this and think that the legal guys are being self righteous and trying to spoil their enjoyment. The legal bike users tend to have difficulty in accepting that the chances of illegal bike use causing them problems is slim. And so it goes around.somehow I suspect that it's not flud who was the cause for d8veh's leaving. Until recently, the forum was a place where most threads were about technical matters, what should you have in your next bike sort of things and helping newbies to avoid silly mistakes like buying a bike too big for their height or too weak for their hills. The change started when KTM Col started on the issue of the dongle and s-pedelecs. The argument was not so much about the technical merits but a legal one, treating members who bought dongles and s-pedelecs with contempt, which is uncalled for. I disagree with the use of dongle or the sale of s-pedelecs but I can't see the justification to use the forum to insult the intelligence of people who decide differently for themselves.
However, why should one side gag the other through the use of a moderator? People should be able to discuss whatever they like, but in so doing they must be prepared to hear the conflicting argument, no matter how frequently it crops up.
This is just one example, but the principle applies to other topics.