I don't see a problem.
I haven't seen Soldiers who only carry the spade around and thats not the idea of this thread anyways.
It's about seeing the opportunity and make something out of it.
IF we will see that it breaks the game you can close this thread and stop it.
This competition is perfectly fun and honourable - given the majority of people who play it are regs and they do shoot first and generally spade later.
I agree entirely with it being a game of opportunism, for which starting a round with the spade out and running around looking for kills is not opportunism at all.
My comment about this "not going too far" was thinking of the following points:
1) Make sure the game doesn't extend to other classes (i.e. medics, snipers, pyro, spy, demo etc). After all, the spade is civilisation is it not. Heavy vs spade is fun an not always doable - which makes the game a bit more of a challenge for everyone (spader and spadee)
2) Don't do it to the exclusion of everything else (which is not an accusation I'm levelling at *anyone* here. So far, the game has been fun and sits nicely within our own play on the server).
3) As with spawn camping, melee kills are going to happen from time to time. As long as it is not the mainstay of the game then it really isn't an issue IMHO.
4) When I was leader (in the dim and distant past) - we kicked several visitors for running around constantly trying to get melee kills. This is not even close to trying to play the game (trying to achieve the objective - which is mentioned on the MOTD). I suspect that the admin team would continue to look dimly on people doing this. We also need to set an example to new visitors on the server, if they see us running around all the time spading people, they may think it fine to go 100% melee themselves. All I'm saying is lets be careful how we present the game to others.