Why we should listen to them while we can learn by ourselves about bitcoin analysis, it is better we do by ourselves because they are not always right, and we don't know if they really have a skill in analyzing the market or not. You can read all about the analysis from them, but you should make your own analysis so you can compare what they say, and you can find more information that could be useful for you. You need to be careful when you read analysis from the analysts and don't trust 100%.
I think you can listen and read just for some knowledge but I don't think you should pay much attention to individual analysis to me, I mean, they're right and wrong at various times throughout their histories. They're not necessarily fraud for being wrong either, and not necessarily legit for being right!