I know if I went to withdraw money from Mt Gox and I couldn't noone would give a shit so it had to be someone reputable.
There was not just one person who had trouble with withdrawals. Over the ~10 days before MtGox completely halted withdrawals, there was a growing chorus of account holders complaining that their withdrawals were not being processed. There is at least one huge thread here full of such complaints. A number of websites, including Coindesk, created polls that revealed hundreds of customers awaiting withdrawals totaling tens of thousands of BTC.
Gox's service was so bad for so long, that no one complaint could have raised any eyebrows.