The first point I would disagree with is that Purists don't make a lot of comments on this forum. They do. No, they don't come out and say "you're a fool for using non-original parts" or anything like that. But I do see a lot of comments made when someone asks what should be used or done, and the answer starts with "I always use...", or "I would only use..." etc. So I would disagree that the purists aren't offering opinions, especially when a request for what should be used is responded with a statement that "you" would only do something that's original to the car.
But I think a reality check is warranted on this topic. There aren't many things that bother me on this forum, but one of them that bothers me greatly is when someone new comes on and they're mixing statements like "I want to restore my car the right way" or "I want my car to be 100% original", or "I see what you guys have done to restore your car and I want to do the same thing" with statements like "I have no money/time/space/knowledge" or "I have no experience with this hobby", or "my budget is very limited", and the replies from the forum are like "welcome to the forum, and good luck on your car. I have a 100% original blah, blah, blah."
I think all of us who've been around the collector car hobby, especially the Mopar end of it, for any period of time have a deep understanding and appreciation for the level of effort it takes to do a great restoration job. We know how much it costs, how much time it takes, how pissed the wife is going to get, etc., which is why I think a lot of us on the non-purist side try to give a bit of a reality check to members, especially newcomers, who come on talking about wanting to do full-up restos when what they really want/need is a good, solid, driver car that they can afford. We've all met these guys in real life, or seen their ads on Craigslist or ebay, and know them by the project car that they dropped thousands into only to run out of cash, time, or spousal support and now have to sell at a loss.
So while some purists might take some comments as being critical of them, or critical of doing restorations, I think they should be taken for what they are, which is a reality check to someone to help them focus on exactly what they want from their car. If they have a car that's common, that they want to change the engine in, that they can't wait to drive, and have a limited budget, and they say they want to do a restoration on it, someone needs to boing them on the head with a healthy dose of reality. This is especially the case for guys who either buy cars, or are planning to buy cars, that they want to restore to 100% original because they think that's the best thing to do. Sometimes it is the right thing to do, but many times it isn't, and they need someone to tell them that instead of feeding their delusions that "right" restos can be done quickly or cheaply.