Parts of this discussion feel too personal for me to want to get involved, as if there was a history with some tension here. But the OP was an interesting read, thanks.
I will usually go along with whatever the module author deems best for the experience, if it does not put me off from trying the adventure in the first place (which pregenerated PCs wouldn’t). When it comes to my personal preferences though, as long as the PC is not a clearly defined character (think Geralt of The Witcher) I still like some wiggle room and illusion of roleplay which makes it easier for me as a player to connect with the PC. In this ideal scenario, a module author would warn that the PC e.g. has to be a human male rogue with high DEX and stealth skills, but I would still be able to choose name, portrait, appearance and a few minor stat and skill things that aren’t as important for succeeding, and the pregenerated PC would be an optional example of a working character, for those players who prefer to jump right into the game instead of creating their own version.
That being said, as an author, of course you’d want an audience, but I think it’s also worth noting that the toolset is part of the entertainment that NWN has to offer and that everyone investing time in creating adventures does it for free and mostly for their own enjoyment or education. We can’t treat this the same way as a product we pay for, we should be grateful for anyone sacrificing their free time and sharing something that we can enjoy at least in parts, without making any demands, and by always trying to stay constructive and friendly. I also think it’s fair (and wise in order to keep the motivation) if authors create the modules they would enjoy themselves instead of catering to other players’ preferences that they don’t share themselves. And since you can’t please everyone anyway, as a module author I wouldn’t do anything just to avoid certain types of inappropriate comments, because there is no guarantee that it will prevent other types of inappropriate comments. If it isn’t one thing, it’s another. Just do your thing and hope that someone else will like it, too.