I totally agree with the bad etiquette thing. There's nothing more demoralizing than taking the time to read someone's content, give them a comment (not 'good job' etc.) To have them reply 'thanks' then up vote that reply and get $1 but not up vote the minnow who gave the comment and bothered to read their post! I do realise however that some posters need to recharge their voting power and will delay in up voting comments, but some people are just plain rude