In addition to the blacklist, there should be a "Suspect" list. Not only would it blacklist the person, it would send a log containing the last thing they said to you to the GMs or whoever handles RMTs.
This way, reporting RMTs would be as simple as three clicks not the long drawn out process it is today. So even if they didn't read the log till the next day or so, I'm pretty sure when they read the "sales pitch", they could summarily ban said RMT. As a bonus, the bans would be based on the offender's own words so it would cut down investigation time considerably.
Could we get a option like this? I'm tired of filling my blacklist with RMTs.