You are right, however if you love a website, you should tolerate monetization attempts, because websites like Reddit have costs to operate and can't survive otherwise (and if advertisement on a website is very obnoxious, then by definition you cannot love it).
Which is why I don't understand the "anti-corporate" attitude of redditors. I've seen few commercial ads on Reddit because they do a lot of self-promotion. They only have a single box in which ads happen. Those ads are also tasteful and relevant to the subreddits involved. Sometimes they are useful.
I understand being annoyed of ads, but blocking Reddit is a political statement. It's as if you're saying that you want all ads to be completely gone from the net. But seriously, the only general-purpose alternative that would work as a replacement are paywalls. I doubt many redditors have thought this through.
Which is why this move by the AdBlock+ developers surprises me - suddenoutburstofcommonsense (as Slashdot would put it).