Wiki projects do not need to know my IP address, and I'm not going to provide it. If you don't want my edits under those conditions, it's your loss
I agree entirely with this statement. When I compare (anecdotally) the cost of accepting Tor edits with their benefit, the cost far outweighs any gain. I would not easily suggest limiting any source of positive contributions, but anonymizing hosts are not a net positive; quite the opposite. We should not need to know your IP, but by insuring we cannot know your IP you also add yourself to a class of users who are not beneficial to the Wikimedia projects. This is an opt-in situation for you, and Wikimedia has no ability to separate you from the spammers and vandals who likewise prevent us from knowing their IP.
Anonymizers should not be considered a problem, but rather a very useful identifying tool. Make their anonymity a feature, rather than a drawback.
Amgine