Interesting accusations .... since all the ad material I've seen at HD stresses their use of licensed contractors - and they have supposedly had, for several years, an exclusive contract with one franchised chain of licensed electrical contractors for their electrical work.

In this town, at least, that franchise has an impeccable reputation, and did quite well, long before HD even came to town.

Now, this is not to deny the damage that may be done by an errant employee. While I have not personally heard HD employees give bad technical advice, I have had employees find ways to mention firms that their friends, families, etc., work for (hint, hint).