As someone who spends time filtering ads and spam from my daily life, I see no reason to stop this practice with my Bitcoin. I limit ads by not subscripting to network TV. I discard junk mail upon arrival. I apply many spam filters and manually mark spam with my email. I don't interact with unknown callers on my phone. I pay extra to remove ads from streaming services. It doesn't seem odd that I limit non-monetary transactions on my nodes.