External Information We cannot consider sites such as coinbase.com/learn, Binance Learn, ByBit Learn, etc. to be sources of information and therefore not references for academic stuff.
I also prefer that it be called an encyclopedia, since you can look for more information and then refer that information to references.

As for plagiarism, it may get the user into legal problems, but I think that articles on sites like coinbase/Binance are open source but you must verify the information..