1) Roger has every right to his feelings (and to speak his mind on his own Facebook page). I have to wonder why you follow him and keep up with what he has to say if you feel this way about him. On the other hand, you have every right to your feelings and to speak your mind where that's permitted. (You know, just like the way you called him "slimy" -- which isn't exactly taking the high road yourself.)
2) Yes, the entertainment landscape has changed. That doesn't mean that everyone prefers the "new" of doing things. I don't know what the CURRENT ratings are for GSN, but you might recall that as of a few years ago, it was reruns of the 70s "Match Game" that were the highest-rated show on the network, despite plenty of newer shows. Not everything that is "new" happens to be better.
1) I
don't follow Roger on Facebook--I just know of these things from threads like this and visiting his profile once in the past.
2) That's right, he has a right to speak his mind...but when he's in the wrong, he deserves to be called out on it. If the show was being run as poorly as he claims it is, then it wouldn't still be on (or #1 in the ratings) 10+ years after he was canned. Making statements like he does makes him seem like a bitter old fool.
3) I would agree with the fact that 70s Match Game was a huge draw for GSN (at least for a while), but I feel like that's an apples-to-oranges comparison. I would be willing to wager that those who were watching it were probably more in your demographic, who have a strong fondness for classic game shows. And while there's nothing wrong with that on the surface, it's an aging demographic, and one that's not going to pay dividends for Price if it wants to remain relevant in the future.
4) You're right, not everybody cares for the "new way" of doing things. But that doesn't mean that he has to disparage the current regime to get that point across. He could just simply say something along the lines of "That's not how I would have done it, but it's a different time and a different staff, and what they're doing is working well for them", and leave it at that. Same thing, but a lot more tactful and doesn't feed into the "haters" on the other side.
I grew up with Bob and Roger watching the show through the 90s/early 2000s, and have respect for what they did for the show, so don't get me wrong. But at some point, he has to come to terms with the fact that "his way" is not the "de-facto" way to run the show anymore.