Niggles: They are crappy repeats offered by the competition - no respect for fact these are gog sale threads? come on mate i thought better of you.
JMich: I also discuss places to get wine with my Beer Bartender.
For me, GOG is not a store. It's a gaming community. Anything gaming related can be discussed here, without the "Nope, sorry, this isn't allowed here".
As for the games in the current Humble Bundle, Saints Row, Metro and Dead Island are not here. So it's not a conflict of interest, the same way discussing wine in a place that sells beer isn't. Sure, both are alcohol, and you may only have a limited budget for it, but not both places sell the same product.
And if I find my favourite beer somewhere cheaper than in my favourite pub, I will tell my bartender that there is that offer, and let him see if he'll drop the prices or entice me in some other way.
GOG isn't a store? I guess this means I haven't been paying for the games I bought here...
This thread is "Spring Insomnia Promo Tracker"; where you do see "Also Humble Bundle discussions" alongside that? I might not be a direct conflict of interest as GOG currently does not sell those games but you're still advertising the competition on a GOG forum thread. Also for your beer and wine analogy, that does work because games are games, and even if you it did you'd still be promoting a competing product.
As for being cheaper somewhere else, if that's how you roll, looking for the cheapest option then maybe GOG isn't for you.
GOG provides quality and service that simply cannot be found anywhere else on the net, and if you're going to forgo that for just plain cheaper then there's other services you can go to.