Have to disagree, anon. Filtering goes quickly once you've done it a few times.
You get to recognize the idiots very quickly by their topics, or their "memes".
Usually 6 or 8 filters in each thread, which takes about 30 seconds total, and the thread is clean.Sometimes more during the day, but still, what the fuck am I doing with my time anyway but reading a chan. I can spare a minute each bread.
I think it's a great technical feature and a shame to not use it.