As a long putter user for the past 17 years, I find many of your views regarding this issue quite humorous. 
I just don't see it as a plague on the game like you do. I think the USGA & R&A should be much more concerned about 15 year olds driving it 325 yds as opposed to what they putt with. I still have yet to see any concise info or study that proves the long putter to be such a huge advantage. Until I do, I'll continue to think that way and use what I want to get the ball in the hole. If it's banned, I'll be very surprised.
It's not that difficult to use a long putter without actually anchoring it to your body. I can hold mine in only my hands without any part of the putter/grip touching by body and still make what you'd think is an achored stroke. What do you do then?
fwiw, in the April 30 2012 issue of Golf World, there was a piece in the Bunker section titled "Discussions to ban anchoring continue" that basically said it was a fait accompli that it will be banned, and that the R&A are currently working on a number of different possible 'wordings' for the ruling. In the article Peter Dawson says that "discussions with the USGA on the matter....proceeding 'at quite an intense pace'". So, it's coming.
As for the second bit - don't mean to sound like a smart aleck, but if the putter is not anchored to your body, it's not really an anchored stroke, is it? Do you mean that you are just choking down on a really long putter but not sticking the end against your belly?
I believe I read something that contradicted that article soon after. I think someone from the USGA was cited saying he was surprised to read those comments from the R&A.
As for your second question. I use a 49" long putter with a 2 piece grip that's pretty standard. I use what would would be a normal setup with the long putter. I grip the top grip with my left hand and my left thumb over the very top of the grip, my right hand is extended down to the lower grip. I place my left hand (top of club) just left of my sternum. Technically NO part of the club is touching anything other than my hands. My left hand rests against my chest but the grip doesn't. Is this anchoring? With belly putters the grip rests against the body. With the long putter it's quite easy to make what you might call an anchored stroke without any part of the grip touching anything but your hands. This is why the ruling bodies are going to have a very tough time with this issue. I'm curious to see what they come up with. The long putter has been around at the top level of golf for 30 years. I think a ban on them at this point is beyond stupid.
The USGA & R&A have let technology run wild over the last 20 years. Persimmon drivers were smaller than a lot of todays 3/5 woods. Graphite has replaced steel in 99% of all "woods". Good players can now play what was considered a "distance" ball in the past, with a cover better than the old balata. Where does it end? With a ban on a certain style of putting? It's absurd.
Here's a quote from an artice from 1989...
"Some players, including Arnold Palmer, Gary Player and two-time defending Showdown Classic champion Miller Barber, don't like it. "I think it looks like hell," said Barber. He also wonders if it's a true golf shot since one hand is held against the body and the putter practically swings itself through the ball.
That's what some officials of golf are wondering also. At last month's Senior Open, P.J. Boatright, the director of rules and competition for the United States Golf Association, said, "It isn't golf. It goes against the tradition of the game." He said if a rule change were to be made, it wouldn't take effect until 1991 and some players might be allowed to keep doing it under a grandfather clause."
And another from the USGA's Mike Davis last year...
"USGA Executive Director Mike Davis said the argument against the long putter has been made for decades and that his organization and the R&A will continue to monitor the situation.
"We don't want to react to trends. There is no data to suggest this method of making the stroke is causing harm to the game or giving anyone an advantage," Davis said. "We readily admit it does help some players, but do we take it out of the game for the masses?"