I find that amusing since apparently I'm the only one that understands the situation completely.
Let's recap shall we?
1. Robert disabled PM's because some members that were merged from another forum were spamming in response to being merged.
2. Robert said he wouldn't re-enable PM's until he created an anti-spam feature.
3. It's been so long that those members most likely no longer care to spam as well as being placated with a special sub-forum of their own.
4. Therefore, Robert could re-enable the PM's without bothering with an anti-spam feature.
Are we all on the same page now?