Community: Username not recognized

Hiya --

I got all the onboarding switch from old to new community sorted yesterday, but when I tried to log in today, I got an error saying my username `Tom_Harrison` was wrong. Did a pw reset (retained the password from yesterday) and got signed in ok.

As a comment, the onboarding process for (new) community is kinda lousy.  It should work with 1Password, but didn't because the username before was email and now is a name with an underbar.  So the saved credentials, even after password reset were wrong.  Username should be allowed to be (and default to!) email -- c'mon, every other site in the world finally figured out that this is a good solution, right?

I have also noted several cases where some keyboard action seems to engage a shortcut that does something unexpected.  In several cases, the editor flips to some other part of the site and I seem to lose my typing.  Back button does work to get me back to where I am, but it's alarming and lousy UI.

Sure would be nice if the markdown worked like GitHub (type in markdown, allow preview). I feel like this WYSIWYG widget is a lot more than I usually need for this kind of forum.

Anyway, despite my whining, thanks for making a new community.  What's really great about 1P is that I have always gotten great responses both from users and employees when I have questions, so hoping that contin