I think everyone agrees that the ecosystem is better off without squatters, but most people also agree that the time we’d spend setting up an anti-squatting system (3 person-months? just a guess) would be better spent in a different way.
That said, I think it wouldn’t hurt having a better search function on crates.io. I’m not sure what it would look like though, or whether the improvements are worth the time it takes. But I’m sure they would appreciate any volunteers in that area. Could be a fun project!