Operation 112 Looks like an Infinite Gift Glitch

I mean... the whole point of those massive giveaways is to draw attention to the site, whether people go there to claim a key to use themselves, giveaway elsewhere, resell, etc... the storefront won't care. Its also a drop in the bucket compared to the number of people just redeeming their keys(we on SG do have a distorted view on some things).

they got people to their store, they also give coupons to encourage those to go spending on the site to which is likely fairly effective.

A black day for people who buy a key for pennies and expect full/reduced CV. Downside is you'll see the game rarely on SG in the future.

Yes, because there are also regional restrictions to get the game for free 🌍 especially in most of Latin America.