Echo chambers are ok. We could consider the entire Earth an echo chamber, composed with smaller echo chambers. Eventually, the echo bounces so many times that new patterns are formed from which the solution to our problems emerges. It is this controlled environment that allows us to experiment, because the dataset is limited enough to provide all we need, but it is not excessively large so we get lost into so much random and irrelevant information. Remember that all experiments bust be done into very controlled environments in order for them to be reliable.
And definetly, shitcoins are just very anoing and distracting noise.