I notice on my Note 8 I have to rotate the phone to landscape to see the "X" to decline a rematch, which I'll usually do out of courtesy if I remember to. Otherwise the UI is fantastic on mobile since 2.0. I would love to see Insights made mobile-friendly but that's a lot of stuff to cram on a small screen.
Probably a good excuse to try and find a used tablet. The site looks especially good on my first gen Kindle HD but it's slower than molasses and that's not a lichess problem. Just old hardware and/or Amazon's clunky browser.
I figured out why it bothers me so much. It's because the "revanche" square keeps blinking, over and over, forever, unless I do something about it. Which makes me think my previous opponent is insisting, repeatedly, on a rematch. Could it just blink, say, three times, and then leave me alone. I am sitting there reflecting on my game and that rematch thing just keeps blinking. Stop it!
Go to the analysis board, this stops blinking.
You can't post in the forums yet. Play some games!