Originally Posted by
darthbimmer
Increasing CL only improves your credit rating if you are otherwise getting marked down for carrying a balance too high relative to the CL. There's no other way it helps. And a higher CL can actively hurt your credit rating as it raises your overall risk exposure.
A higher credit line does not hurt FICO scores. It can only help. Even if you only let $2 on one card report, a higher credit line helps.