The only third party tool of sorts that I used was a list on these forums that shows the rare items and the stations they're at back when I was trading rares in my rum-runner Cobra. I have somewhat mixed feelings about that, but overall I'm OK with it as I see it more as a traders' guild sharing of information rather than a third party tool. This is an MMO after all, not a solo game, and I did do that trading in open (hence the Cobra runner build).
Personally, I do draw the line before using third party trading sites that show you routes to take and where to buy and sell what. Do I think other people should use them? Ideally, no, but that isn't for me to dictate to them. All I can say is that trading really isn't that hard and that people should get out more and visit different systems and stations.
In general I agree with the premise of this thread. However, regarding "min/maxing," that's just what I do, to a degree. Sure, I don't always use the best ships for the job and the like because of personal preferences (on my return from Sgr A in a Scout at the moment, for example), but within those preferences I do optimize my builds to suit my needs.
The anti-min/maxing crowd out there needs to keep things in check just as much as the next guy, in my opinion. There's nothing wrong with playing smarter. It's when you don't enjoy the game content and playing the game itself that there's an issue, but that's up to the individual to determine, not gaming elitists. This goes for both the "min/maxers" and the "anti-min/maxers."
Strategy is fun for a lot of us. I play chess, not checkers.
This of course is disregarding actual cheating, which I won't get into in more detail, but suffice it to say that I never think that's a valid option and that cheaters should be banned from the game.