We have added a Gift Upgrades feature that allows you to gift an account upgrade to another member, just in time for the holiday season. You can see the gift option when going to the Account Upgrades screen, or on any user profile screen.
This is terrific! Thank you. Parenthetically, I recently started using a wonderful mod called Improved Aqueduct district, which gives the district a number of buildings (such as bath, sewer, water purification, etc) each yielding Amenity and/or Housing benefits, making it a lot more satisfactory to use a valuable hex for an Aqueduct. The mod gives an additional way to take the population cap pressure in mid game. Again, great article thank you OP