No.
- How comfortable are you every time you transfer to a remote address?
Very much comfortable. When checking the address of the sender by confirming it twice.
- Would you be more comfortable using a helper?
No. To date not used any helper. But in future, if any services are available then will definitely consider helper.
- What do you use today to mitigate this risk?
I personally always check the sender's address along with the respective chain. Most addresses with exchangers have limited control over cross-chain support, so always check Chain support for a particular address. Blockchain technology is immutable and non-reversible. So always confirm and verify your transaction before making any payment via crypto.