I wouldn't let it bother you too much. Why don't you ask him why he doesn't? I'm sure he's busy most of the time.
Sadly i got a problem that small things or recurring things or illogical things bother me a lot ><"I wouldn't let it---------------ure he's busy most of the time.
He does talk. In fact, I had a nice chat with him via PM and Discord.
Just ask politely. "Hey, Marc, you rascal! Why don't you pop in the forums more to say hello?"