I know that we cannot make new rules that are incompatible with the overall SE ethos, but we can try to set some norms for the expected behaviour in our community.
I suggest the following. If you create a new tag, then you should immediately write at least a first draft of the wiki for that tag, before you use it.
This has a number of advantages for the person asking the question. It gives you the opportunity to demonstrate that you have carried out genuine research into the question that you are asking before posting on SE. Or, if you feel that you are not sufficiently knowledgeable to contribute to the wiki, it gives you an opportunity to reflect on whether you know enough about the topic to be certain that the proposed new tag is appropriate. Perhaps with a little more consideration, you can find an existing tag that is just as descriptive of your question.
Adopting this practice can also help other users of the site prioritise their activity. For example, I could determine that time and effort that would otherwise be required salvaging tags should be devoted to answering the new question.