Hello Geni staff!
I changed language from English to Swedish. After that I couldn't comment on a video. OK when I changed back to English.
Thanks for the report, I created a bug ticket.
It's better to email firstname.lastname@example.org (or click the Help link at the bottom of the page, and then Contact Us in the header of that help page) -- we don't always see every public discussion, particularly on the weekends.