Yes I was stalking to you. I was answering your question.
I think that it seems that people have a different idea of what cleaning is. Some seem to think it is about changing the appearance of the coin like stripping it of its toning. When I think of cleaning I think of getting of things off coins that did not happen naturally that were put onto the coins by those handling them like grit and dirt. I opened a roll of pennies that were hand rolled with all kinds of crap on them like hair and pieces of tissue. I soaked the wheats in alcohol and water but the copper pennies I was adding to my set books, I just threw them in the sink with shampoo and swished them around. There was a lot. As I mentioned, one idea to clean a large amount of copper pennies is to throw them in with the laundry.
Would throwing your coins in with the laundry be improperly cleaning them?
I would throw the capped bust in with my white clothes and use plenty of bleach and see what happens.
If you read my posts, I always say that it is better NOT TO CLEAN. Conservation and cleaning are two different things altogether.
I'll be honest, I don't know the long term effect of acetone on coins. But I am a chemical engineer and see no real reason why it would severely harm the coin. But I think that it can sometimes leave the coin with an unnatural appearance. To me, that is damage enough. I do know the long term effects of fingerprints on coins. I have several early proofs that have fingerprints that will continue to darken forever. It is too late to do anything about them, and at this point it is literally part of the coin. If caught early enough, acetone can be effective. I guess it is up to you to decide if it is worth the risk of devaluing your coins.
do not clean coins