I'm trying to withdraw BTC from there right now and they aren't even sending the email to confirm my withdrawal...
I was just about to do the same today, but then I saw the fee was 0.001 and decided to convert my entire BTC balance to XMR. I'm otherwise not at all surprised that S.E operates inconsistently from user to user and day to day.

Were you able to withdraw XMR?... I'm getting extremely annoyed by this.. its been 5 hours or so and no response from support and no email to confirm...
Oh, I didn't try withdrawing XMR; I was able to withdraw the DERO I bought a few days ago... on the second attempt, anyway. I would check the withdrawal status on S.E to see if it actually got processed/approved. When I tried withdrawing DERO the first time I went through both confirmation steps (2fa & email) but the withdrawal was still marked as "waiting confirmation." I had to cancel that one and try again; for whatever reason it worked that time.