gpsbabel fixes most problems, sometimes a bit hard to use.
The other thing you might try is to set the gps to storage mode, that way you can copy the trace using a file manager.
You could try removing the flash card and use an external card reader.

What do you mean by 'exclude'?
If you mean 'delete' that is not possible for a reason. If you have a vary good reason to delete your account e-mail one of the administrators.

If the rail is in OSM you can export the OSM map as SVG, edit the map to highlight the rail and the stations, then upload to Wikipedia.

But still why? What advantage does we get?

We have a central database and a CVS. Why use git? There are no problem with how things are done today.
And there are far to much data to use a distributed repository. You might use a DHT if you insist on distributing the data but the lookup time would be to long.

The best way to handle the huge amount of data is with a central database.

Somebody ban his IP or something. Or better come knocking on his door and *** his *** out of his *** so that he *** all over ***. That will teach him the price of vandalism.
Just remember that OSM is all about the love of map making and discourage all kind of violent behavior.

That just shows how fast open source is for you. When you are maping it on opening and gets beaten to it. Just wait for any comersial map to get that new road in their products.
Conflicting spelling are hard to handle. I recomend you call an official and asks if he could help you. Upon investigation he might find the real spelling and classification, and you will raise awairness.

Your effort is not wasted.
A gps trace is better then an import because it reflects reality better. Altso road imports have just been used for USA and the Netherlands. Still most of the data on OSM are from traces.
Altso imports does not come with POIs and other data important to make a map complete.
Your effort helps alot and an import can never be as good as a trace.

I recomend trying JOSM, a java program for editing OSM. The editor on this page (Potlatch) is best for quick fixes.
In your area there are a lot of TIGER data that needs reviewing. Look at osm.wiki/Josm#First_Steps for tutorials on haw to do this.