I'm not working on anything. Many proposals (including your proposal that we were discussing here) are flawed because people don't understand how it works.
Here are some good proposals that are at least possible but it is not clear how well will they protect us from bots:
1. Increase map size.
2. Add computational difficulty.
3. Add several coins to collect.
4. Change map generation algorithm to prevent fall-thru maps.
But something should be done. While we a talking bot owners are mining. I am not very satisfied with the fact that we discussing the ways how to save the coin while bots are mining. It appears that we are now working to protect their wealth. This is not a normal situation.