These things will be determined in regulations. My humble opinion is that we need to take a good pragmatic look at it. Scoreboards are very nice. They're very expensive. Communities don't have the money in their budgets to buy them. Maybe you could limit the size of the branding on them.
I know, for instance, that in World Cup skiing, headgear sponsorship is allowed. Athletes control the rights to their head gear sponsorship, and they look for sponsors. They have sponsors on their headgear, so whenever their picture is taken, a sponsor is there, but the International Ski Federation limits the size so that it doesn't overwhelm the other sponsorships they count on for putting on the event. There are ways to do this. It can be limited in the size and amount of branding.
We need to be very careful. Donating to support children's sports, because I believe in it, should be encouraged, but to use it as a promotional and marketing tool, if it's directed to children, is a problem.