It was for a single month, which I would not consider "consistently profitable." I spent May trading 5M and 15M setups and grew my demo account 17%. I spent June primarily trading 1H and 4H setups with a similar strategy and ended the month breakeven. To be fair, it would take a solid 2-3 months of trading THE SAME strategy to really validate its efficacy, but based on my results for those two months, it's pretty evident that I'm more geared toward scalping.
Why exactly is it not possible to profitable long term scalping? I've only been doing this a few months and am not "good" at it by any means, but if you use similar risk management principles in your trading strategy (always trading at least 1:1 or higher, settings tight stops, never risking more than a certain percentage of your account per trade, etc.), what is the difference between trading 5M, 1H, 1D, etc?
The issue I have with trading 1H and 4H setups is that I hate having to keep busy for hours, go back the next day to check my positions, and see that I got stopped out. I'd rather be in front of the computer actively trading, I can't "set it and forget it."