One thing that has always amazed me is the ability of some people to type messages on the fly while playing an MMO.
Perhaps I'm showing my age, but I have to stop what I'm doing and type with both hands in order to respond to something I'm watching. If I'm in a BG and we get jumped by 4-5 people in Arathi Basin, I basically have to sacrifice myself in order to warn everyone else.*
All I can do is marvel at the people who raid and can type while they're casting or playing whack-a-boss. I once carried on a conversation with a blogger friend while the blogger was in the middle of progression ICC. When I mentioned that I'll let him do his job, he kind of laughed it off, saying it wasn't a big deal.
I suppose that's were a multi-button mouse (like the Razer Naga) comes in handy. Of course, you still have to be able to type with one hand, and I'm kind of lousy at that.
What would be nice would be combining voice recognition software with an MMO, so that you can speak into a mic and have what you're saying pop up in typewritten chat.
Of course, I can see some readers saying "there's this thing called Mumble or Vent, and it really works!" Yes, I know all about those, but when do you use that when you get into a random BG? Or an instance pug without guildies (or any other guild to provide vent access)? Last I checked, most non-raid pugs just roll with it and get going without much more than a "howdy!" The thing is, the more you play, the more complex things are, the nicer it is to communicate without these artificial barriers.
For example, discussing which enemy to DPS down when confronting the opposing faction team in Mandalorian Raiders helps that encounter go much more smoothly. Likewise, working out strategy in Gundrak helps make fighting Gal'Darah that much easier. I've found that more wipes come from a lack of coherent strategy, such as in Halls of Reflections or Magister's Terrace, than the inability to get the job done. Perhaps the worst place for a strategy breakdown is in the long run to get away from Arthas in HoR, because if not everybody is on the same page, that increases the likelihood of a wipe exponentially.
That loops back to the need to communicate, and the disadvantages puggers have over guild runs.
I can type, and type quickly. Not everybody can. I can't type on the fly in the middle of a fight, while others can. That means that other forms of communication --such as audio chat-- are superior, because people can communicate without changing what they're doing. However, the current setup of using a third party tool --often paid for by a guild who would naturally be reluctant to share with a non-guildie-- is a barrier that ought to be examined. Yes, I know about WoW's built in audio chat, but really, who does use that anyway?
Here is an opportunity for either an entrepreneur or an MMO company to fill in a communication gap and reap some nice profits.
*Well, unless I'm stealthed as a Rogue. Even then, if I'm low enough level people will find me easily.