I haven't and don't advocate a complete stoppage of new content development, but at some point I would like to see someone from SSG step up and say that fixing the massive lag issues, crashes and major system bugs is a priority and is being worked on just as vigorously as the addition of new content. We're 10 years into this journey and the game is less stable now and more buggy than it was on day one of launch; and it's not just because it's "bigger". It's because there is too much that has been swept under the rug, set on the back burner or simply ignored/forgotten and not promptly identified, addressed and fixed.
It has nothing to do with an entitled attitude. I think what you are seeing is a growing customer base that is really beginning to get fed up when the answer to every game problem is either, buy more ram or get a new system. My wakeup call (and I would guess a large block of customers along with me) came with the introduction of Minas Tirith. Up until that point, excessive lag in certain areas and warsteed rubber banding (still not fixed) were probably my two biggest gripes...that and the see-saw class nerfing and un-nerfing. Now, if I go to X area, or zone in and out of X area X amount of times, I CTD. Not just some of the time, but all of the time. Sure, I could probably reduce my graphic settings and that might help, some...maybe. But the point of the matter is this: my system that ran the game almost flawlessly on max video settings, well now it doesn't; and the ROOT CAUSE of the problem is NOT my system, it's buried somewhere within the game, and the responsibility for fixing it lies squarely on the shoulders of SSG. I cannot identify the problem, much less fix it; all I can do as a customer is to supply the Devs with end user feedback...and no matter if it's Turbine, WB, SSG or whoever, if they choose to ignore that feedback and in turn focus on new content, well then they aren't the ones who should feel insulted.
Look, everyone, myself included, likes to see new content added; and I think that applies doubly for those of us who have played this game regularly for so many years now. But, there comes a point where all the new content in the world won't finance a game where it's necessary, or at the very least, you begin to feel like it's necessary to upgrade/replace a PC every time said new content is added. But once again, that is just my opinion...and as we full know, everyone has one.