They were specifically created for cleaning ears. First line of the wikipedia history.. The reason Q-Tip says not to use them in ears is plausible deniability. They know they mostly get used to cleaning ears. But it’s incredibly easy to puncture your eardrum doing that. In order to stop people from suing them for using their product in its main use case and hurting themselves, they simply specifically instruct against using it that way. While that is a wholly ridiculous falsehood, without it they’d have probably been sued so much that no one would make them. And then I wouldn’t be able to clean my ears.