Could it be you are not looking at it from their point of view? Isn't it possible they very well know who is complaining? Valid and constructive criticism is something people do if they want to see the product or service get better, which is what most of the criticism is about. If they didn't care or didn't want it better, they wouldn't say anything. which is exactly why i started this topic. social panda and i have sent in tickets about basic functions of the site not working, and have received zero feedback. david (staff) even wrote in one of my topics he was going to ignore the complaints there. the sad irony is that he was quick to lock it when a competitors name was mentioned in passing-but he still ignored the issues.
BUT, your point about longtime members complaining could be something they are very well aware of. Wouldn't you agree most members are fairly new members? Wouldn't you agree that most of the longtime members who complain are the very small minority of revenue generators? Could it be that the concern isn't about what YOU want, maybe it's about what chess.com wants. It might be as simple as maximum revenue in exchange for least amount of trouble/outlay.
In all honesty that's probably what I would do at my business. Why would I accomodate the complaints and criticisms from a minority of customers who want something different than what I want? If I make my business unfriendly to them, if I marginalize, censor, or even outright ban them from my business, I dont have to deal with them anymore. The majority of customers, who might be newer and who provide more revenue are the ones I would cater to.
based on your last paragraph, i'm surprised you aren't already staff. ignore and ban members with concerns?
as far as "catering" to other (newer) members, i do not remember any outcry for flair, puzzle rush, achievements, etc. these things just appeared. in virtually all my topics in help and support, the concerns are about functionality.
I dont think they would want me on their staff. I would never accept the job. To them it's a business, which I totally understand. To me, it's just a website that allows people to play chess. Let's be realistic, who cares.
The reason you dont remember any outcry for the things you mentioned is because there wasn't any. Again, it's not about what you want (or any other member), it's about what chess.com wants. It's a business. If I gave my customers everything they wanted I would be out of business in a week.
I think it's great that you, and others, are genuinely concerned because you really do want things to improve. But I'm not like that. I vote with my feet. I stopped playing here a long time ago because I realized very quickly when V3 came out that things were not going to get better. So, I just play somewhere else. Problem solved. I dont complain about chess.com because there is nothing to complain about. They run it the way they want to, and I respect that and understand that. It should be pretty clear they want certain types of customers, and it's also pretty clear they do not want other types of customers. You just have to decide which type you are.
will we have to discuss mickey mouse & child custody as well? 
Tomorrow you will all wonder why the change of heart.
not to worry, the bunny shall serve as your witness - dump posts from @selficideZ, a repeat @redgirlz obsessor. why don't they have bots to catch this instead?
Almost funny, considering how I caused the first (and only, I think) bunny ban.
Again, don't ask.