Things like these which you know will definitely provoke the community tend to make things worse.
The forums tend not to take kindly to trolls, constant annoyances, people who exhibit extreme stupidity, and people with gigantic egos.
You want the community to "change" but no one will listen to someone who blatantly admits to trolling and likens the whole community to hateful people with no lives. If someone trolls the community, how do you think he would view him afterwards? They would probably burn him with flames until he leaves, the reason behind this is that many trolls continue to troll and won't leave until forcibly ousted. Even if the troll was to claim to have "changed" they usually haven't and again exhibit their old habits and are banned. Trying to change the community through revealing its character by trolling won't do anything but annoy the community.
You say that flaming is a waste of time, and yes in some cases it can be, but in other cases it can lead to the removal of a nuisance within the community, and on extremely rare occassions, can cause reform of said individual.
Also relevant
