Thanks a lot. Yes I agree about the question of encouragement and contributing. Thats the questions we need to get sorted out here.
Re contributing...May there is a chance to spot spam by combine commenting intervall time with reading time of the post. I see you have the data of reading time of a post. When a user access a post which is - say - 5 Minutes Reading Time, than there is a good chance that a comment after one minute or less is spammy..
RE: eSteem - Spotlight, top users and giveaway #2