Woah... I've played way too many games online to say "yes" or "no" to this.. In some games I do good, some ok, some bad.. The worst part for me is the decent in skill.. Take Counter Strike. I played and played and played and played, and at my peak I'd say I was a decent player.
Then I sort of stopped playing, and just popped in every now and then.
And now.. I feel bad for myself.. It's now about 3 years since I was on top, then about 2 years ago I really practiced for The Gathering (big LAN in Norway, used to be the biggest in the world) and got up to about where I was.
But now, when I play.. It's so sad.. I fight a guy and die, and I think "Damn.. I would have won a couple of years ago.."
But in general I guess I loose most of the time.. Simply because I play (or rather played) too many games so I never got good at any of them : )