I totally disagree, the reliability does not drop down if you experienced enough to understand how to trade, it is like any other patterns. As far as fake breakouts they started long before HFTs, you can go back to 1982 on S&P charts and see false breakouts on megaphones. Traders use "HFT" like chewing gum as an excuse, you either figure out the game better than others or you in the heap of those who blame others. Patterns are like an indicator and most don't see the LEFT of now, meaning to identify one does not do certain types of trades, like trend breakouts as by time to getting in price will be reversing, usually by seeing 2 points on each side gives one the chance to not take 2 break out trades and allows on with trend deep retracement trade plus picking up the failed extension to other side.
But your charts, are intraday, LOL.
And by the way, my "pattern" is straight from Thomas Bulkowski, so guess you going to tell him he is wrong, there is not time element on how long it takes to develop the pattern. If a pattern only works on dailies and weeklies and not intraday, it is not going to be a good pattern, whether they happen or not.
http://thepatternsite.com/bt.html
Oh, one from 12-29 not a megaphone, it is a Diamond pattern. There is not right or wrong in trading, just making money is all that counts.
It is nice you have well explained charts.