Don't think people cheat just because they come up with strange words. I play Scrabble and I don't know the meaning of many of the words I use. I just study the 2-letter words, 3-letter words, Q-words that don't need a 'U'. You'd be surprised how well you can do just starting with those 3 tactics and playing words in parallel.
One hint, use words that phonetically spell out the letters of the alphabet (i.e. "A" = ay, "V"=vee).
Doing well in Scrabble doesn't equate to expanded vocabulary. Doing well in Scrabble means having good memorization skills.
We don't all cheat.
Besides, I play not to win but because I get personal satisfaction trying to come up with my words. And if they cheat, I'm sure I'll learn some new words from them.
The one thing I had to adjust to is the new layout of WordFeud. It's much easier to hit the double and triple word on one play. Gotta learn not to leave that opening.
BTW, I do play WordFeud and my name is OVurt.