Well I just got the boot, with an apology, from the Gardener's Supply affiliate program. They cite the following PA tax law "re-interpretation" releases. (See links below.)
I know to date Amazon usually acts quickly in these cases, to remove all related state affiliates, but perhaps they are giving up?
Perhaps Garderner's Supply is just covering their butts, because the state claims they can use records up to 3 years in arrears, to force businesses to collect sales tax. So technically Gardeners would have to collect sales tax for at least three years anyway. Guess I'll have to write my elected officials ...
Talk about getting a big job done: "Just in Time!"