I agree completely that one should not hesitate to get the FCC involved. That being said, I've sent 3 complaints to them about MCI, and only on one occasion did they actually follow up. The other two times, I did not hear from them. On both of those occasions I had detailed accounts of specific problems, worthy of some response, IMHO.

Perhaps they are just too busy with all the mail about the Big 3 and all the 10-10 operations (owned by the usual suspects in many cases) coming their way...