If your method is good others' opinions should only help you. The two kinds of people you want to avoid are people who don't know what they're doing who think they do - the unconsciouscly incompatent - and negative people. Most offices have many of both. If you can find a good environment with people who share ideas it should be very rewarding.
The way I see it is that sometimes I will see a situation where there is a high probability of success on a trade, or at least excellent risk reward (a good setup) where I don't intend on taking all the available liquidity. Perhaps there's $2400 on the table with $1200 of risk and I only want to risk $200 to make $400. If I tell 4 other guys who each get in and make an extra $400, no money is lost to me and it's no harder to maneuver out of the position.
If the four guys whom I made $400 for, each throw one trade/day at me, and on average I make $100 from each guy's idea that's an extra $100,000/year. Whether you're doing this in an office or via skype or AIM or however is really unimportant. Sometimes when I'm down and someone who has a style different from mine but so different that I can't trade it throws a good idea my way it helps me gain back my mental trading mojo.
I can't put up the same p/l by myself as I can when trading with others, and since I know that I try very hard to make sure I don't gain dependancy on other people for my ideas. Just because someone throws money at me I don't allow it to decrease the amount of work I put in on my own trading. I try my hardest to be prepared for a scenario where I am forced to trade in complete isolation and where my main strategies all die. It will happen.
