Stuart,
I admire your work and acknowledge that you have been around here for 17 years. You have thousands of posts under your two forum names showing wonderful knives and great advice. I recall discussions between us in the past about apple seed grind techniques and other knifemaking topics. Your advice is always good and encouraged.
(Jokingly) If you don't like my moderation, feel free to send Spark a message and volunteer to take over the duties. It isn't as simple as one might think.
Many good makers have come and gone. That is the same on every forum I have heard of, be it train collection, beekeeping, or bladesmith/blacksmith forums.
In Shop Talk, some makers left voluntarily because they were frustrated over new makers who asked repeated questions but didn't listen to answers. Others left because of big arguments over techniques or metallurgy. A few over one-on-one feuds with another maker. Some just got fed up with too many argumentative threads like this one. Some got old and don't participate anymore. Some, like fitzo, came back after a long break due to needing time off for health and such.
The bulk of those in Shop Talk who left by being banned either asked to be removed, or were banned for content, conduct, or language. I don't recall anyone being banned for having a different opinion than the mainstream.
I assure you that I go way overboard to not ban anyone myself. I don't think I have banned a person myself more than a few times. Heck, In don't even assign points normally. The supermods often ban someone for content, conduct, or too many violation reports. Sub-Forum moderators often don't know anything about the why or when in those cases. I have invited people back after being banned and some have returned. Others have moved on to different forums or spend more time in their shop and less online.
As an example, Tai-goo and I communicated by email for a good while after he left. He was always welcome to come back. He was happier in his forge and decided not to return. As far as I know he is still happily making his knives and selling online. A fun fact about Tai is that even though he might have seemed like a primitive "back-woods" maker to many, he is highly educated in several fields of art and metalworking, with advanced degrees in metalworking. He was a college professor at one time. He developed and marketed his Neo-Tribal style knives (and other Neo-styles), and it has worked well for him. I even put Tai Goo in my annual Christmas poem.
Ed Fowler and I also talked after the big ruckus over my letter to Blade magazine. We are not bitter enemies, as many thought we were. A difference of technical opinion is not the same as hating a person ... at least not to me.
Just for the record, I don't admire Natlek. He makes my job much harder often. I regularly contact him off the forum to ask him to knock it off, tone it down, or step away from a thread. I do this off-forum with others regularly, too. Most of the time when I post a specific warning or similar statement to a forumite in a thread is because the person does not take direct messages.
I do admire Natlek's shop skills for making machines from whatever he can find in Macedonia. He has 6000+ posts of advice and his projects.