Well, that is fairly dishonest of UserWay. The implication is that those critical of accessiBe are therefore supporting UserWay, and since half the tweets cited are also signed on to the Overlay Fact Sheet it suggests UserWay is less interested in getting its facts right.

I captured the UserWay page at the WayBack as it stands today so we can reference it without giving it link juice (a highly technical term, I know).

And for the record, UserWay is also a problematic product and it also makes claims about what it can do that do not stand up to scrutiny. This criticism of accessiBe in no way suggests the other overlay products are good. In fact, my 2015 post Be Wary of Add-on Accessibility names UserWay as one of the problematic options out there.