I just click if it interests me. I move my mouse over pics, because surprisingly, a lot of them are links or turn into something else when I put my mouse over them. Most of the time, unless it's from a well-known map maker that I've seen maps from before, I won't click it. If it is one of those people though, HELL YEAH! I also click on the red diamond to see where quotes are from (if it's funny)
I click on links to maps and file shares. I feel that if someone has a map or fileshare linked then: A. It's a really popular map, B. it's a map that doesn't have many veiws or comments, or C. their too lazy to post. So 2 out of 3 times it has potential.
I click on anything that's shiny. Especially if it's green. And has goats in it. You should too. Lawl. Seriously, though, I'm a big fan of map (or other) links in people's sigs. It allows me to see some cool creations I otherwise wouldn't, and get a little more insight into the various members here.
yes, I do. Only the ones with creative names, shiny formatting, and I am also more likely to click a picture link. Like the one the OP is using.