Create new pinboard.
Add new Pinboard entry.
Copy-paste a link from Dropbox into the Pinboard entry.

• The link has spaces in the name:
  • ...www.dropbox.com/home/companyName/Folder%20Name%20With%20Spaces/etc

After finalizing the Pinboard entry, review the link within the Pinboard Entry:

• ...www.dropbox.com/home/companyName/Folder%2520Name%2520With%2520Spaces/etc
• "%25" has been prepended to the "Space Character" portion of the URL

Problem: Clicking the Pinboard Entry link results in a "Page Doesn't Exist".