"As a "M", I've contributed more, and will continue to do so, than a "MLife"."
You certainly have contributed more than me, as have folks like Dave Ure, who's also been a member much longer than I have.
Ryan is close hold with info about BPL (as is his right, no complaints), so I have no idea on how many impressions he'd accumulate if he made ads invisible to M'ers as well. If there would be few people left (negating putting the ads up in the first place), then I'd be all for not excluding anyone from the ads, including MLIFERs. From Cameron's pic the ads don't seem all that intrusive, so I wouldn't be bothered by it.
Of course, I'd just as soon see the MLIFE designation go away entirely. That doesn't mean I want to be charged again - that's one 'deal' that I'd prefer BPL not try to renege on, but I think, overall, the MLIFE thing became a minor disaster - it was more fodder for promises unfulfilled than anything else. I vote for closing down that part of BPL history and moving on. Let's just have M's and F's (I know, I"m an MFer, too easy).
In concert with that, 'full' members are members, same bennies for us all. I can see continuing to separate forum only members from the rest, but that's it. There's enough pitting one group against the other in the rest of our societal dealings (as chaff has been sadly pointing out a lot lately), let's get away from it, for the most part, in BPL.