tip: hetalia f/f sort:kudos
I wish people would leave more comments too, but I wouldn't say a kudos means anything less. As I see it, the kudos button has largely replaced the keysmashing and "nice story!" type comments I got back in the day on LJ.
Kudos mean less to me, which I probably should have made clearer, considering that many people seem to have misconstrued my words. They're better than silence, but I still take a "nice story!" kind of comment over them any day of the week. (I still get that type of comments from time to time, so I wouldn't say they got replaced, but I suppose it's different for everyone.)