I'd like to see a feature added where it would be possible for people to donate for a friend. Over the years I've noticed that a lot of people are generous enough to donate for a friend / family member. Currently, the person would have to either be physically next to the other person or they'd have to use something such as Teamviewer to buy VIP for the other.
Allowing people to buy VIP for someone else could generate a higher flow of money and this could indirectly affect the servers in a good way.
A way to make this idea work, is to require people to have a forum account with their SteamID linked. Using a simple input field and an AJAX request, people can search for other forum members. Once they have found the correct username, they can click the username and also retrieve a link to their profile (SteamID64 is stored in the database, if not, SteamID can be converted to the Community ID aka SteamID64 easily) to confirm it's the right person. Once this is confirmed, the person can donate for someone else.