Current rule reads:

You may only challenge if you and the player you want to challenge are not playing at that time.
If you receive more than one valid challenge within a few seconds, you need to ask the players to state their ranks in the lobby and play the best-ranked challenger. Under any other circumstances, however, challenges are to be played on a first-come, first-serve basis and ranks are NOT to be taken. This is an extremely important rule to follow! :-)

Proposed Change:

You may only challenge if you and the player you want to challenge are not playing at that time.
Challenges are to be accepted on a first-come, first-served basis ONLY.

Voting for the proposed above change will make the following rule obsolete.

Once a player asks for 'ranks' due to multiple game requests, no new challenges will be considered until said member is again free for match requests.