YES and no. TA is for suckers and every pr0 that worked some time in the business knows this. TA is only used to enter or exit trades not to actually make trades.

2nd thing is TA is useless if the product you trade in has almost no volume like all cryptocoins except bitcoin.

3rd haeijn just offers TA worthless or not people seem to be really attracted to technical analysis. People are also drawn to religious unproven figures for some reason... It's hard to blame a person for doing it.