Best way to have a bug addressed is to put a 100% reproduction case in the bug forums. If it is already there poke a moderator to ask if we've missed it.
As to not enjoying our updates, nothing I can really say to that. Each person will have their own opinion. We are well aware there are those who don't like what we do. But we can't please everybody and we won't even begin to try.
As to bugs in the game, yes there are bugs. As I said in the first paragraph, the best way to bring them to our attention is to get us reproductions. Or better yet, join the test team. You say we lack testing, you are right. We have trouble filling up 1 server to test. We are currently preparing a change to our testing system in hopes of improving the situation.
Yes, in the last major update we released community content. We were happy to do so, the mappers who worked with us were happy to do so, and most of the community believe it or not, had never seen or played these maps before. This was a win win win situation for everybody. Tripwire spent countless man hours helping these mappers and in some cases the teams that worked with them to produce these maps, putting our own work on RO:O and our next project aside.
We don't have huge bank accounts filled with tens of millions of dollars to throw into RO:O. If did, TW would be the first to jump for joy and get cracking and fixing every single little bug or problem with the game. As it is, we developed the game in its entirity with our own money and still continue to do so today. We have probably now put more money into supporting RO:O then we did before launch.
If you don't like the game that TW has produced, then I gladly support to you spend your gaming time and money elsewhere.