Happy 30. b-day, Henkka!

They're probably too busy with things to remember to check a forum, search through all the topics and find stuff to respond to. I respond to every message for my band on our forum, myspace, facebook etc but we aren't on a tour bus every day of the year constantly rushing around trying to focus on living and playing (or if they aren't trying to take some time off because you know they are people and aren't just music producing machines that never get tired or have personal stuff they want to deal with outside of the band). Any interaction from a band is cool but when they post on boards that's usually pretty unique for a big band; stuff like studio reports I've become spoiled and kinda come to expect because of all the bands that do it but getting a personal response no (especially on their birthday I bet the last thing they're thinking of is oh I better check the forum to see if any random internet strangers wished me a happy birthday!).
 
Like I said it's better they focus on the new song material.

Unless they're lying on their sofas drinking beer as we speak. :D