I don't, but I think there are some there who done/doing this and not all might be known.
Hoping I could be one of them someday.
Right now we are dealing with a sideways market, even the altcoins have had very selective rises and falls. When there is more volatility im sure more can make good money day trading.
Now is a good time to mine or invest in miner companies, but not trading soo much.
You have to consider volume also.
Just because the price might reach a given high, doesn't mean that there's enough buyers at that price from someone to throw enough money into it to make a substantial profit.
very true, i see this alot with altcoins. You can put a bid on a coin, but it does not always completely fill. Can take some time in alot of cases.. same for asks when selling.