Fudder is a term for people who deliberately spread FUD (fear, uncertainty, and doubt) so people sell their assets. The term itself often creates confusion. People sometimes attach the word to anyone who spreads negative news about crypto even though it is true.
However, the correct use of fudder is for people that spread negative information about a particular project in order to get people to sell the asset. The term is usually for people who don’t like crypto in general or don’t like a particular crypto project.
Therefore, you need to be critical in viewing information and always look for a balanced opinion.