Shedding does happen. Especially in the first couple weeks after the shot.
https://citizens.news/653738.html
Do you read what you post:
For example:
https://www.indiatoday.in/technology/news/story/mrna-technology-pioneer-says-covid-19-vaccinated-people-can-shed-spike-protein-twitter-says-delete-this-1809062-2021-05-31
Luigi Warren tweeted that people vaccinated with mRNA-based vaccine can shed spike proteins.
He added that this shedding is in minuscule amounts and hence cannot harm anyone.
And, the citizens post has nothing go do with shedding.
The urinary shedding link discusses shedding from those who have had covid.
The noqreport link discusses a patient that had spike proteins in skin lesions but does not mention any shedding from those lesions.
Feel free to try again to post some supporting rationale.