I have to throw my 2 cents in here because I think there is merit to what Spear says, and I’ll tell you why,
About (I think) 3 months ago I visited their site thru my link and when leaving a popup came up and I copied the link and then because I can’t ever tell if my damn code is there or not; the way they have it set up: so I emailed them the link and merely asked if my exclusive ID was in the code, and they unknowing where I’d gotten the link; replied no, that it wasn’t in the link.
I can’t remember now if I even bothered to write back, But combining that with a less than expected bottom line were enough to make me cut back their exposure.
I might even still have that email if I looked around for it.