Little help please!

I'm a bit confused as to what exactly you do in this forum.I've had a look at some of the threads, but it doesn't really make sense. I've even looked at the one on the top, but I still don't get it. Can anyone explain properly?

hmmm one don't make threads like these two to if you need help ask some oe through pm if you want pm me what you confused about and i'll try explaining it