Let's do it this way:

Hello and welcome to OpenStreetMap, Jack. Thank you for contributing to The Map and keeping it up to date.

What Juliane was trying to say was, that you went ahead and worked on things across continents in the same change set. This ist annoying to many other contributors of this project as this article in the OpenStreetMap wiki will tell you
https://wiki.openstreetmap.org/wiki/Changeset#Geographical_size_of_changesets

Anyways: The wiki is a great ressource to find out about the ways of The Map. Here are some good starting points:
https://wiki.openstreetmap.org/wiki/Good_practice
https://wiki.openstreetmap.org/wiki/Contact_channels#Chats.2Fmessengers

In case of questions, just ask. Most of us don't bite

cheers
silversurfer83