If you have to receive money from multiple people you reuse a single address. This is how everyone does it. The anal retentive among us can do multiple addresses but you don't have to be like that.
If you have toxic waste to dispose of just dump it in the East River. This is how everyone does it. The anal retentive among us can properly dispose of their waste, but you don't have to be like that.
Thanks for proving me right:
Alternately you can add to the privacy pollution by giving out a single static donation address. That's a solution that's easy for you and will cause harm to other people in the future, but lots of other people are doing it...