Plan a Route with "Max Elevation" setting
Not because I want to avoid it, because that's exactly the route that I want to take!
The "Create a route" feature has a "min elevation" switch. I'd like to see a "max elevation" option. Ideally, I'd like to just go to the "create a route" page, pick a start/stop position, tell Strava about how far I want to go, and it comes up with a route for me. The hilliest possible route. :-)