better kill you and your whole family who are wasting h20
I think he was abruptly suggesting that reading the thread would explain what you're seeing there. What you're seeing is something called "Variance" and is completely normal. A cursory search around (this thread or many others) will explain it thoroughly

ok i understand we have server issues today and those numbers are variance but i was having straight 1.8mhs for 24 hours with clevermining altough my rejects are around %5 and can you say clever doesnt show variance numbers?
Wafflestats shows your exact hashrate at that particular moment while clevermining will show your average over the last 10 minutes. You should be okay as long as your hashrate is somewhere in the middle of the range. Try changing your hashrate resolution from the default 5 minutes to 30 minutes to get a smoother graph.