Huh, were you looking at the same plot I was? If two sites cater to the same clientele, and stackoverflow has gone from zero to some significant fraction, how

Huh, were you looking at the same plot I was? If two sites cater to the same clientele, and stackoverflow has gone from zero to some significant fraction, how is that not a market share going from 100% to ~70%? Just because there is no huge decrease in ee doesn't mean they are not losing market share, because all those stackoverflow hits could have been ee.