Let's try to clarify what's going on here. If Dan decided he wants to show his thanks to those that have directly helped him earn his living, it makes sense that only those with HTs get invited to a dinner. Why should someone with lots of posts get invited? (Why even care about quality of posts when quality posts don't equal more profit over substandard posts?) Why should someone who has made wikis get invited? If the dinner was for another reason, though, such as showing thanks to those that help keep this an active community (which indirectly equals profit), then sure, go ahead and invite people who have lots of wikis or lots of posts despite quality because even those with lots of posts of lower quality are a big part of this community.