Use the report
button
If you stall for 1:30 of a three-minute blitz game in this position, you should delete your account

Didn't you consider that maybe some people aren't as good at blitz in every position, or are genuinely thinking for longer than you'd like?
There's no timer for your move, only a limit for all your moves, in case you didn't know.
Someone being slower to move doesn't constitute unsportsmanlike playing.
[No Public accusations allowed -- Jordi]