For the time being, we will only process requests above $50,000 in size. We believe that by the time we are able to get to the smaller withdrawals, other, less cumbersome
Your only knowledge of this is based on "surely we'd hear of people complaining on English language forums if they weren't able to".
And at the very least, if you do wish to do anything, you are required to maintain at least $10,000 USD (not USDT) and wait for up to 12 weeks for verification.
At least a cursory search of English fluency says that if there are complaints (or compliments) on Bitfinex, most users are certainly not going to be posting them on English-language forums.