I left a comment in the above issue on GitHub. I am uncertain what kind of road geometry you try to “improve” using GPS. As Bangkok is relatively flat, you should have only minimal imagery distortions due to height model applied on georectification.
The effects of inaccurate GPS tracks due to multipath effects and other urban canyon problems are likely much bigger.
Please be extra cautious to not make road geometry worse by taking GPS tracks as reference.
Uploading the GPS tracks to OSM might help later mappers. So having the data in OSM is certainly preferred to having you offering it on some 3rd party site.
Thanks for your ask and recommendations on the GPS Traces! We are working internally to find the best way to share them from our side.
Just a note to remember, that these GPS tracks are recorded from our local mapper’s survey, we will only release these traces along the new areas that we are mapping. We will ensure to mention “GPS Traces” in the changeset source as well.