People are lazy. Put a link in there to puppies.com, and 70% of people wouldn’t notice, but they would assume you are well-researched because hey, you gave them a link. 20% will click on it but just read the first paragraph and zzz. So if it’s at least on-topic, then you’re well-researched in their eyes too. 5% will try to read the whole thing but not get it, so then you’ll be well-researched AND brilliant. I made these percentages up, of course, but I’m pretty sure 5% is on the high end of the number of people who would notice that you just linked to something that refutes your argument.