Don't be mad but quit being babies. Anytime someone takes the time and effort to send you words, sheet, tablature or any other tool to help, is a good thing, especially when you're going to sing lead or harmonies (words can be a _itch). It also makes it easier for all to have a "roadmap" on breaks/choruses/interludes and solos. Being on the same page makes things easier and quicker to pick up new songs/ideas. If someone doesn't like receiving them, then he/she has to speak up but then I would expect them to have the structure/chords/etc of the song 'down' prior to our rehearsal. It's called taking your job seriously.

Tommy B.