Hi Growth Team! Having glanced at the impact module a bunch since activating the homepage, I just wanted to offer some thoughts on it.
First, if new editors feel at all similarly to how I do, this module definitely seems to be succeeding at the goal of helping editors feel satisfaction about their impact. The main way you normally find out that others have seen your edits is when they get reverted, and this is a lot more pleasant than that haha.
Second, this is probably something that's a lot more acute for me as an experienced editor who edits tons of different pages than it would be for a newcomer who hasn't edited that many, but the selection of pages still seems off. It feels very heavily weighted toward pages I've edited recently (which have less views since I edited them by virtue of being recent), and sometimes pages I've only made quite small edits to show up. Adjusting the algorithm that picks which pages to show to favor ones where I've made large or many edits and place less weight on ones I've edited most recently might help.
Third, I think a likely impact of this module to consider is that it pushes editors toward editing more popular pages. When I see that 100 people have viewed my contributions to one page and 5000 people have viewed my edit contributions to another, that's a strong push toward editing the second page. If that's the case, the upside is that it'll allow their contributions to benefit more readers, and that it'll increase their odds of coming into contact with experienced editors who can help them if needed. However, the downside is that many more popular pages are already in much better shape, so they may have a harder time finding positive contributions to make, and the editors they encounter may be as likely to revert or bite them as to help them out.