I recall that thread.
To answer the guy's question, and recall not everyone on here is high speed as hell, that in a nutshell, the average sniper mostly collects data and battlefield information. He takes shots of opportunity (leaders, etc.). He generally likes a concealed position a ways from the action, and he likes to have a panoramic view or birds eye view of the field.
That said, stay out of sight and behind cover. If you were covering large amounts of area, where would you be? And these guys aren't stupid either, they likely have backups watching them, hence watching you. Snipers work because they demoralize the enemy because you never know when its coming. If it was easy to evade them, they wouldn't be so esteemed.
Some folks talk OPSEC. Some cops think they are CIA and everything they do is classified and requires a sarcastic response. Some soldiers do have OPSEC concerns. But for the most of us, that info is available in various FM's and some TM's, so it is hardly OPSEC. Some of the counter measures can actually be found in infantry 7-8 if not mistaken (you have to sort of read between the lines, but you'll get it.).
In all honesty, hunting people isn't much different from hunting animals, only animals are generally harder when technology is removed from the picture.