not every joke is going to land with everyone. sometimes they're not even jokes, just pointing out absurdities.
if they don't land with you, i wouldn't stress it. sometimes the humor is extremely nerdy. it's like the Far Side or Monty Python. it's not everyone's cup of tea, and that's OK.
They're hit or miss. This one is mildly amusing to me. It's been going strong 3 comics a week for how many years now? Not all of them are good of course, some I consider just bad but I think most weeks have at least one good one.
It's a comic published multiple times a week. Common social etiquette is that if you find it funny (which is known to happen), you give it a grin or a mild chuckle or whatever, and then move on with your morning and, by extension, the rest of your life.
I would argue that nearly no one finds this one funny but many found this one funny
The OP comic is less accessible than the empiricism one, so the target audience is smaller, some of the smaller audience comics required one knew Firefly, open source memes, and Corey Doctorow. When you're in the target group the comics are especially hilarious
Some have fallen flat for me until I looked up XKCD explained, since I have very low knowledge of pop culture. I wouldn't say those aren't funny, I say I don't get them