Forgive me, but wrong. I actually think Kirby isn't too bad of a match-up anymore. He's still bad (who isn't for Link?) but not one of Links top 5, say.
Where to begin? Ah, Kirby's combo! Unless you can do some 4srs mindgames, expect about 40% damage from the combo. Ouch, you just took 40% damage!
...And now what are Kirby's options?
He can get you off stage and gimp you. ...So, how is he going to get you offstage?
Its easier said then done. In facing a competent Kirby, the only move that effectively gets me offstage is fsmash. And that's mostly effective only when I am forced to land in front of him; the only opportunity he has to hit me is my landing lag.
The key is to
keep mobile. Utilize your spamming and mindgames to their fullest; Kirby just can't keep up. Its a game of keep away, and Link has the tools to do it against Kirby.
Can't Kirby duck your projectiles?
Only if you aren't playing your projectiles and spacing game well. Admittedly, you have to be doing a fairly bad job if he feels he can afford to duck and mock you.
Only fsmash has the speed, length, strength, and knockback trajectory to take you offstage so that he CAN gimp you. Theoretically, a Link should be able to DI downwards and whiplash back to the stage, but through my slow thought process (...Wait, I can teth--*gimp*) I haven't been able to do it more than once every four times.
Mostly I fear the Kirbycide. Once he has you,
there is no escape.
Kirby has a fearsome offstage game, damage buildup combo, a pathetically funny suicidal-but-not-fatal suicide move, and a decent move for knocking you offstage (ONE move). Unfortunately, this alone is enough to put it in Kirby's favor. But not quite as much in his favor as I once feared.
Pretty much, you need to be able to move a control stick around really fast, do some FF nairs, and have faster reactions than me:
http://www.youtube.com/watch?v=7E49ggUg8sM
As this video shows by my flame choke tech chasing, a third grader can have better reactions than myself.
Ta-da, my stuff on teh G-Kirb.