Can checks be revoked? That would be bad because you can't get back your bitcoins right?
You're fine after it clears, which is why this is a kind of an issue. It takes time to clear, so this would be a very slow way to buy bitcoins. Therefore its going to be a very unpopular way of doing it.
Not necessarily true there are a few possibility's that might be rare but can happen. Say someone is writing checks and forging name of someone else might pass... and person notice on billing cycle.
There are other ones two. But yes clearing does help with most issues.
When a check is cleared, you are guaranteed to keep your money, because the process of clearing the check is verifying if its a legit transaction in all aspect. Clearing is not equal to receiving your money. You actually receive the money before the check clears.
This is because the banks legally have to give you the money within a week, but it actually take longer for a check to actually clear. So while you will receive the money after a few days in your account, if you want to legally spend it, you have to wait for the check to actually clear, which can take days to weeks longer.
Because this literally takes forever, people don't use check for this. The seller would have to wait something like 3 weeks before releasing the BTC. This would be pretty pointless for the buyer as well.
TLDR: Using Personal checks is bad for Bitcoins. But i guess a certified check would work fine.
