Here is what I'd like to see:
- Blacklist entry editing. Sometimes I make a mistake entering one of my own entries, and the only way to fix it is to delete the old one and add a new entry.
- Integration with comments and comment moderation (MT 3). Something like a button that says "This is spam" and would add the entry into Blacklist.
- How about storing the blacklist entries in a a database table? It might slow down the blacklist though
Although not plugin related, another thing I'd like to see is the format of the Latest 100 changes changed to something that could just be copy/pasted into the blacklist. Then I wouldn't have to grab the master blacklist file all the time and have it tell me that most of the entries are already in the blacklist.
That's all I can think of at the moment. If I come up with more, I'll add them in.