After killing him a few more times as an engineer, I got tired of it and found a new server. It's been a long time since I ran into a TKer, mostly because I like hosting my own games or playing on the Hunted server where I have rcon. A multi-millenium ban is usually more poignant and to the point than simple revenge. I picked up what I needed to know from the good people of teamplay. Thinking back, they took command and told me where to go.
Someone organises the less experienced for the greater good of the team.
So I think newbies can be the best team players if you train them well enough. Player asks where to go. Now you have a personal body guard who is gonna take half the damage aimed at you. Oh, I'm all for helping newbies if they legitimately want to learn and aren't that dumb. I have problems with the ones who don't read the manuals, mostly.