SeekingAlpha must have recently changed the Community platform to this userecho thing. Now when I get e-mail alerts on topics I'm following in the forums, I can click on the link and open the topic but cannot log in to comment.
The log-in to seekingalpha.userecho.com recognizes my e-mail but not my password. I cannot log in to comment in "Community." (Prior to platform change, I could easily join in.)
I re-set my password but that didn't work. Looks like you have a database conversion fail here.
Customer support service by UserEcho