Here are my opinions.
I choose to play with the VP counter off whenever I can because that's the way I prefer to play the game. Why do I prefer it that way? Mostly because Donald X designed it that way and I'm not a game designer, so I really don't like to deviate from exactly what in the rulebook unless I have a really compelling reason to. Convenience, by definition, does not qualify as a compelling reason for me, let alone a really compelling reason, and definitely not a really compelling reason. I realize I have probably lost more games than I've won because of a lack of VP counter/ability to count, but I accept this and I get as much enjoyment out of it as possible.
If there's a #vpon game I want to play, of course I'll play it; if someone asks me to play #vpon for a game (edit: that I'm hosting) then sure I'll do it -- usually in my tournament matches we alternate games of #vpon and #vpoff and I think that's a fair compromise; if there's a Tournament/Black Market/Knights game sure I'll play it, but I prefer to play without those cards enough that I don't carry them in my IRL box. I don't feel strongly enough about any of this to go blacklisting people for it because I think that's just plain ridiculous. People are entitled to disagree and that's great, and while I hope I don't miss out on games with high-level players because they're being ridiculous, whatevs. It's just a game.
Bold statement: People seem to think that a majority of Dominion players prefer to play with the point counter enabled. I think a vast majority of people don't care, and of the people that care more people prefer to play with it disabled rather than enabled.
Maybe I'm wrong. I've been tempted to just make a poll to see what peoples' opinions are but I don't think it would really answer the question. Again, these are just my opinions so feel free to disagree.
If computer tools are able to track certain parts of the game for players so they don't have to, great. If people want to implement those tools and use them while playing, great, as long as all players have equal access to them and know what they're getting into before starting the game. Would it be nice if automatch or table titles would help people match up with the games they want to play? Sure, that would be great. Should people be able to blacklist others because of their preferences for using some amount of these features that's different from their preference? Sure, I guess, though as I stated before I think that's just plain ridiculous, but whatevs. It's just a game. Please note that I have not made a distinction between point counter and full-deck tracking with all the bells and whistles and stuff -- I think everything I've said applies to all of it in exactly the same way.
Here's another opinion of mine: I like the idea of a way to just blacklist people that are commonly blacklisted as a way of weeding out trolls. I think that should be separated somehow from people blacklisting others for their game preferences because, as I said before, I think that's just plain ridiculous. Unfortunately, the fact that some people have said they don't care and want to merge those lists means that some people in the community want to violate the spirit of such a feature, and I think the best thing that can be said about this is "this is why we can't have nice things."
Anyways, those are my opinions. Feel free to disagree, I think it's great if you do. But you probably aren't going to change my mind.