Thank you for letting me know, Mateusz. I'll check out that thread (and the mailing list in general, looks very handy!) and comment if I don't agree it.

This is a good point. Looking up individual businesses on the street, I see they use all three spellings as their address. So Skyvue at least needs to be added to alt_name. Are you local? Would you say that Stagg Hill or Rosencutter is more predominantly used than the other? I would say that cross-street's sign should get the name, and the less used cross street's sign should be in alt_name.

I was reviewing part of US 69 in Claycomo, MO, and see the road is named Lewis and Clark Trail. Is this the changeset where that street name was changed? I think it needs to be named US 69 in the Claycomo section.

Why are there so many changes on a single submission, and all unrelated? This looks very suspicious.