He's always at the end of a PM. Within a few hours at least.
Yes, one of your comments sits in the spam queue at the moment having tripped an automatic spam filter. The other 19 you've made are all posted - though your most recent one was in April.
Don't worry abou the message, I've seen your post here and "un-spammed" the comment. Hopefully your future posts won't get caught again; if so, just let me know.