You're welcome, enjoy !

We don't include a very detailed explanation, but they can see the suspension reason is "Not Activating Won Gifts", they do have the titles of the games not activated (with the giveaway details I already mentioned), the quote "Won gifts should be activated to the Steam account used during registration, and they should not be regifted, traded, or sold." and this screenshot.
Then they have the link to submit a ticket if they do not understand something and need more details or some help with something.

Yeah I know it's still something we need to make clearer, sorry. But yes, our policy is to allow using giveaway descriptions to advertise, as long as it complies with other rules of course (no referral links and such)