I posted a link to Sudoku.Coach as a complement to this site since its emphasis is on teaching solving techniques and was promptly banned from commenting in all of your channels.
That is bad policy. I didn’t know you were cutthroat about posting links, and wasn’t even given the opportunity to remove the comment myself before being banned.
In this case you just lost the entire Sudoku.Coach audience because I had already posted an invite to your Discord at the Sudoku.Coach— you can be assured that I will delete it and tell them your policy.