Ohh! Thanks for the correction and the headsup,  I didn't even check the transactions I only looked for the post made by fillippone after seeing a dust like comment  .

That means the spammers are definitely paying high fee to get a task done so as to receive greater  reward in BTC or a particular token, they don't  really care the amount they are paying as fee so far they will have a reward which more than their  output +fee  in total