I believe its as John Lydgate who said "You can please some of the people all of the time and all of the people some of the time, but you can't please all of the people all of the time."
We all have things we like and don't like about pinside, and Robin and the moderators continue to trying to find a balance that works for the majority of 'members'. You can make donations if you want, but you don't have to (and hearts do acknowledge those who have contributed, regardless of amount). You can sell your machines here and pay a small fee, or you can sell your machines elsewhere if you don't want to. if you want to be 'out of control' you can take it to the basement (although I don't like that many catetories/topics have to start there, where few will see it, since to my knowledge you can't have basement threads just show up with the rest of them (but maybe you can?)).
I am pretty comfortable in saying that there are going to be few changes or enhancements that will be universally loved. I get that no one likes to be nickel and dimed, but to be honest 99% of the users here can be here and do what they want without it costing them a dime. it seems to be that Robin is trying to find a way to support the site and himself and balance that with the desires and needs of others, not easy by any stretch of the imagination.
Personally, I would rather not see advertising. I contribute a little bit each year in hopes it keeps it that way. I think moderators do a pretty solid job of keeping threads from getting too far off track (lets remember, they are people and therefore flawed like the rest of us, so they are not always going to be perfect at it), because if ever thread did, the site would quickly become unusable. I'd like to see for certain threads that the OP can do some moderating as well, but I recognize that opens a can of worms (so maybe it is just marketplace threads, given the other dynamics around them).
Bottom line, use what you want, ignore what you don't like. If you don't find the benefits outweigh the negatives, then hopefully you find a place that better meets your needs. But again, few here will ever be happy with every aspect of the site.
Now everyone, go take a break and go press some flipper buttons.