Yes, because so far there are no machines or people who can definitely guess the price of cryptocurrency. So if you are looking for a site that can predict the price of crypto going forward, I think it will only be in vain.
Predictions are not really accurate but somehow we can get an idea on their basis on why they think thats the possible future for the particular coin.
These are my source when it comes to predictions:
https://bitcointalk.org/index.php?board=57.0https://bitcointalk.org/index.php?board=224.0