[flexcoders] Proper way of giving thanks?

[luvfotography]

Hi, 
I've received many solutions to my questions here on the list and want 
to give thanks to those who took time to answer me.  Is it proper to 
give thanks on this list? I'm reluctant too, because it clutters up the 
list, (just like this post) but I just want to say thanks. Sometimes 
the private email of the contributor is not available?