These videos are made by Slowbeef(the guy from the Something Awful forums who started Let's Play's) and his friend Diabeetus.
Basically, they make fun of people who make horrible Let's Plays(which there are a lot of.)
So don't do the things they make fun of people for and you'll be fine.
Fraps is the only way, Camtasia is poorly optimized, and you might get 10 FPS recording rate if your lucky, here is a video just to show you how bad Camtasia is when recorded at 30 FPS (the max):
And here is something recorded with Fraps:
Also, a lot of people think it is ok to pirate the software greats of today. To pirateis to download a copyrighted material of of a website through peers, often through a distributive hash table. This is something we should all work as a community to keep at bay.