You have to have at least 3k subs to qualify for the pledge.
In order to qualify for Webtoon’s pledge, creators will need to:
a) Update at least twice a month
b) [Have 3k+ subscribers (All regions) AND have 10k+ US monthly pageviews / update*]
OR
[Have 5k+ subscribers (All regions) AND have 5k+ US monthly pageviews / update]
It's an "AND" statements, so you can't just qualify for one but not the other.
And on that note about their comment section, yes I agree it's quite annoying when you don't know who commented on what chapter. Sometimes I just randomly scroll back to my old chapter and BEHOLD a bunch of new comments had been sitting there for quite sometimes without me knowing. And I try to answer every comments possible so it's quite irritating for me...
Knowing that most readers are probably in the age range of 11-18 (mostly 13 maybe), I can say it's normal for them to be like that LMFAO.