This really is an interesting insight into the human mind... there are several kinds of people on this it seems...
Color stackers: These people find all the letters which are the same color (yellow for example) and put them all in one big pile and remove any letter that isn't of that color from their pile
Random Pile makers: These people just grab letters from everywhere to make a giant mess and make it harder for people to find letters to make words
Naughty word kings: Life wouldn't be complete without writing "cunt" or "fuck" or "shit" where everyone can see, right?
Follow the Leaderers: Randomly and for no reason as far as anyone can tell letters start to roam around the board in packs, following a distinct leader for the whole duration until the pack eventually shrinks or the leader flicks their wrist and loses the entire pack.
Letter Sex Fiends: If you see a T, use it to hump a U, if you have an I by god man why aren't you fucking that slender looking H over there?
Word Rapists: Will do anything to prevent actual words from being formed, from using
Random Pile maker tactics - to cover up the area where someone is trying to make the word - to stealing letters away from anything shaped like a word and throwing it somewhere random.
Pattern Junkies: Tries to make circles or lines or neat patterns with either all the same letter or alternating colors, perhaps a mutation of
Color Stackers
to be continued...