I think maybe I should un-facetious a bit of this.
if you don't know, heikin ashi are a type of bar/candle but they're not just OHLC. Heikin ashi mean "average candle" and that sort of what they are. you can google for the proper definitions.
the reason I use them instead of normal candles is that well, the entry, stop and exit of my trading is all done from the tape / DOM, so I'm not ar$ed about triple-dopple-ganger-three-green-frogs-in-a-tree candle patterns (at least intra-day). I said somewhere else, for me, OHLC on candles is only good when the Open and the Close mean something structural in the market (mostly appropriate on daily timeframes). I don't think hourly or 15m opens and closes are important at all whatsoever, do I don't give them any attention.
Some things to know about heikin ashi are that they make it look easier than it is. in a good trend the open of a new bar is the average of the old bar, which isn't always a price you can trade at. on the plus side, it means you don't get shaken out of a long or short bias on insignificant price action.
as well another thing about heikin ashi is that in chop it can be dead obvious. I use them with an EMA on tick / volume charts (NEVER time charts intra day) along with volume histograms (V. important) and tape/DOM for my trading.
Italia Italia Italia 🙂