Are Chuck Norris Jokes and Chuck Norris Facts Different?

Hi. I was reading a Foxtrot cartoon the other day and Jason says to his mom "My endless Chuck Norris jokes have made me something of a Parah within the game" the game in question being World of Warcraft.

Now I know what a Chuck Norris fact is, such as "Chuck Norris's tears can cure cancer, to bad he has never cried, ever." but is a joke something different? I'm thinking this only because I guess I don't understand why telling Chuck Norris facts would make him a Parah to his online friends. This is why I'm wondering if it isnt' something different.

Thanks.

PS. I'm listing this in the online game section because of the cartoon reference and I'm thinking maybe a Chuck Norris joke means something to online gamers.
 
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