What does it mean that “Community <>” modified a question?

Question

I saw this question pop up to the top of "active" list, with "Community <>" user as the actor.

What arguments can be given in favour of financial barriers for participation in elections or electoral debates?

However, I don't see any edit/change by "Community" user on it, not even when looking at timeline: https://politics.stackexchange.com/posts/465/timeline - the only timeline entries are from "Dec 18 '12"

How can I find what the change was?

Answer 1

It changed nothing. It just "poked" the question because it had received little attention and no answers with score >0.

For a complete answer, see this post on MSO.