(not sure why he left out Corvettes)
I didn't.....
flak, fighters, HCs, CVs: they all counter LRFs
I use CV for Corvette, which means...
Only one of those is a hard counter to LRF's
Three are a hard counter (HCs, fighters, and CVs)...damage tables put those ships at 1.5, 2.0, and 1.5 vs. light armor (respectively)...flak was a hard counter with minimal micro, though the very recent flak nerf has changed that...
So out of 6 ships (HCs, CVs, fighters, bombers, flak, and LFs), 3 are hard counters against LRFs, 2 fair rather well, and only 1 is actually weak against them...add on their vulnerability to AoE abilities, and thats a pretty foreboding outlook for LRFs...
I won't say they are useless, but if you invest heavily in LRFs for any reason (such as a guardian spam), your opponent's counterattack could easily devastate your fleet...
I will defer to my original serious suggestion of increasing the range of ion bolt and phase out hull to 8000...these are changes I have actually played with and am happy with (though I will admit the other stats of ion bolt and phase out hull were slightly different), and I find them effective in dealing with guardians...if your opponent spams so many guardians your caps simply can't handle them, then your opponent is lacking in something else (likely raw fleet DPS) and that is a hole that can be exploited...