Hive account@abit is one of the most well respected members on Steemit and has contributed to steem more than almost anyone you can find.

Those comments you see are done for a technical reason on the blockchain, I forget exactly, something to do with bandwidth, and is being done in a positive way, to help us and the blockchain.

Its great work you are doing, but abit is not a spammer..lol he is a hard worker and helps steem

Edit: self upvoted for exposure