Holy cow! I read the first page of this thread and was flabbergasted - folks saw that checkbox, and thought it was a method for expressing PREFERENCE for in-progress runs?
No. Just no. Roulette as a whole is meant for one purpose: To allow people to help other people in need. The rewards you get are an incentive for doing so, not an end in themselves. When you are checking the "in-progress" box, you are saying, "Yes, I'm willing to help out an in-progress run if I'm needed." You are not saying, "I don't have the patience for a full run, so try to add me to a partially finished run."
A change needs to be made, yes. Players can't be allowed to know that they're getting an in-progress run until they accept, and harsher penalties need to be levied for withdrawing, or abandoning a run.