I lose connection 1 in 3 times I play, at random times.
Therefore my attitude is; there should be no real punishment, because if there were, be it times outs or ships costs, I would have left the game a long time ago and I really love this game.
Never combat logged myself and don't see the need to do so: I nearly lost my Clipper running into Walters dock the other day, to idiots and I am very limited on re-buys. So after docking up, I took the option of mode changing; which some here think is a sin, so for some, there is no win or solution to this issue.
The final thing to think about: Before you think about punishing those that 'combat log', ask yourself this. 'Will they really care, really be bothered?' If they are 'cheating' and that is what is happening, they will just think 'meh' and play another game. Where as, if you punish those who have had genuine connection issues, or even those driven to it by 'bullies' etc, you are hurting the wrong players.
There is no real resolution; it IS an option, leave it be.