The question is, wheter IP owners bother to sign a contract or not. They might think "who's gonna buy this old crap", and then GOG says "well, we have 10k people here who voted for this game, and our internal data shows that for every 10k votes we sell 10k games more, so we believe we can sell 20-25k units, and that's 150k $ to share, and our cut is 40%, so you will make almost 100k $ for signing this deal". And then IP holders who thought that their IP is not worth much say "WHOA, where should I sign".

And that's how GOG brought us some of the games they sell.

As I said above, IMHO, votes on a wishlist do not now nor have they in the past influenced IP owners to sign a contract. A "meeting of the minds" contract is what brings a game to GOG, sometimes with several different IP owners each with their own motivations. That is just my opinion and should be taken as such since I have no connection to GOG.

I do believe GOG staffers work constantly to obtain IP rights for every game possible not just those on the wishlist or at the top of the wishlist. If anything, I think the wishlist might make them aware of an old game but these guys are professionals. They didn't need a SS2 vote count to know that it would sell nor would they cease their current efforts to obtain hundreds of games because a game jumped 100 points on the wish list. Obtaining IP rights is a long process that can take years.