I think technical analysis is sometimes bullshi and sometimes not, many traders are profitable because of technical analysis, there are also traders who lose due to technical analysis. In trading at least technical analysis can help you where you need to make a buy order. Regardless of how well you make technical analysis, cryptocurrency is volatile, there is still a possibility that your technical analysis moves against market values.
even when technical analysis goes wrong way, it doesnt mean bullshit. many technical analysis book/ article said that it is just tool to help. not saying 100% right
in technical anlysis also teaches about stoploss, how/when we must set stop loss when we goes wrong way, so we never get big loss again because of stoploss
that's why i believe in technical anaylisis and use it to trade cryptocurrency
For me it depends, if the one you are basing at is honest and reliable, so you can check their analysis just, but it should be not your basis at all, since doing your own research, making your own technical analysis should be better, don't rely on other people, don't make decisions because they said it, as market and people can do anything to manipulate your mind.