Comment by rsynnott

Sometimes making a politician aware that "if you vote for this, it may annoy people" can be enough. Your average politician votes on a _lot_ of things, many of which they know little or nothing about. They will take only a small number of them seriously, and a big factor in what gets taken seriously is what people are moaning about.

The first step really is just getting the politician to think about what they're voting on.

They also don't actually necessarily get _that_ many letters.