There is at least two meanings of word "Blocked" in UI:
  • Blocked Users (can be found at least in MM, plural)
  • Blocked Avatar (can be found on nameplate, non-plural)
It seems, this is only instance of word "Blocked" on Crowdin, so it probably also used somewhere else. It may also be necessary to split those for plural and non-plural forms for each context, but we not 100% sure yet where this string might used in another places.