yes, obviously the solution is to automate the sending back of the sbd,
even very small projects here that dont accept sbd have such automation,
so self evidently binance is more than capable of having such solution deployed.

Making posts calling them thieves is more likely to get them to do nothing until they get sued than be compassionate with people who made mistakes.

Right, the solution is to make posts telling them what a great exchange they are and perhaps sending them flowers and chocolate bars.
Likely to get them to do nothing? They are already doing nothing for years on this issue, how are you gonna get them to do nothing if they are already doing nothing?

The response that the affected parties received is that they are not technically capable of resolving the issue at the moment and they will get back at you, then they close the ticket, that simple.
In the case of the transfers from bittrex, as you can see they include the binance memo, so for example they could send it back with the email corresponding to the account in the memo, its not quantum physics.

By the way, this is clearly illegal:
https://www.wilson-nesbitt.com/news-updates/Criminal/7463/Public-unclear-on-law-on-retaining-wrongful-credit