There's some obscure settings that putty supports that other terminals do (did?) not. It's been a while so I don't remember all the details, but for example, so

There's some obscure settings that putty supports that other terminals do (did?) not. It's been a while so I don't remember all the details, but for example, some systems expected the DEL key and not Ctrl-C to interrupt. You can change the interrupt key with `stty` on other terminals, but it only allows setting the key to a single character, and DEL is typically an escape sequence.