Let's talk about Binance:
- Binance Improperly used users' funds to take over the Steem blockchain
- Binance does not always refund your money - violating our property
- Binance is almost constantly with Hive in maintenance mode.
- Binance will never return any Hive Dollars you send to it
- This user sent Hive to Binance, and they refuse to refund it!
Read about it here
Ionomy, HitBTC, and Bittrex have always credited my account when there was a mistake in the memo after communicating with support.