Yes I do.  I do it while I'm questing. It make game more fun.

farming sux but its a neccesity.
at low levels jus make sure u fill up your bags with as much junk as possible ( weapons/armor costs more than random greys)
and sell at vendor when u pass.

at 70 getting all ur skills up to date, reputation, mounts (5000g) and boredom (twink) will be costly. so u haf to farm

i enjoy farming also knowing as grinding. this gives me the freedom to bounce from one zone to another, without having to find one item or kill one type of NPC. i DO quest with my lower level (everything below 69) toons, but when they hit 70... i farm all day!

i farm fire motes, 1 primal is 25g so its not bad. but it can be repetitive let alone the competition for mobs. im a hunter and i sometimes pull 4or5 elementals jus so that i can loot em all before someone else does. then a jealous horde will come and gank me but fair enuf, im being greedy