Given the sheer amount of hours worked each week to create an episode the size of a Webtoon Original, $2000USD a month is actually very low. That works out to just $500 a week, which is barely enough to live on if you were single and living alone in most Western countries.
Thankfully, though, that's not the only source of income a creator working with Webtoon would have. They also get a slice of the ad revenue from their series, as well as a slice of the income earned through the coins people pay to read ahead. In addition, most creators have a personal Patreon, where they can provide paying fans with things such as wallpapers, bonus sketches, and so-on. All of this adds up to an amount which, by no means large, is enough to live on comfortably provided you have a modest lifestyle.
And if you have a partner who also works, you'll obviously be far more comfortable given the combined income.
