My personal take on the situation.
I don't think this forum (and it's natural prequels) is any better / worse than it has been for the last 8-9 years I have been browsing and contributing to it, merely different. I don't ever recall it being a bastion of humour and tactical dissection. Indeed some of the best posts I have read are by people I don't believe were there at that time (Rallyboy and Halo in case you are wondering).
As a Moderator I get asked a lot to pick people up on trolling or spoiling threads. In the general scheme of things unless people are taking the thread off-topic or are conducting themselves in a rude or discriminatory I'll let it go.
Although the repetitive posts from some can be tedious posters do have three simple options:
1) Use the forum ignore function
2) Use your own ignore function
3) Debate the point and let your argument win
The number of threads and posts complaining about trolling / Wumming is becoming as prominent as any perceived trolling.
Not everyone will agree and / or like each other. Accept it and deal with it.