About "Note"s: https://wiki.openstreetmap.org/wiki/Notes
Notes is a core feature of the OpenStreetMap.org website. It enables you to add a comment on the map to assist others in mapping/editing OpenStreetMap. Other users can respond to your notes, for example to ask for additional details if necessary. Example of a valid and useful note can be “a new road was constructed here” or “this shop is closed and does not exist anymore”.
Please note that OSM is a project to map the observable reality. While it is sometimes tolerated to add important projects which are about to be realized (proposed), it is also disputed as it is not about the physical reality. If you added this proposed expressway yourself, I guess it might well have been passed, because expressways are considered very important, but adding a note asking others to do it, likely not.
IMHO it was ok to close the note, and if Woodpeck is right about you evading a block on another account (and he is experienced about this), then you should wait until this first block expires.
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