Comment 2 for bug 253532

Launchpad is indeed contradictory.

lib/lp/blueprints/templates/specification-subscription.pt
      56: title="Required">(Required)</span>

lib/lp/code/javascript/branchmergeproposal.reviewcomment.js
     168: '<span class="fieldRequired">(Optional)</span>',

lib/lp/code/javascript/tests/test_productseries-setbranch.html
      49: <span class="fieldRequired">(Optional)</span>
      89: <span class="fieldRequired">(Optional)</span>
     155: <span class="fieldRequired">(Optional)</span>

lib/lp/hardwaredb/scripts/hwdbsubmissions.py
     790: "responsible" for the question. (Optional)
     820: (Optional)
     827: run for this question. (Optional)
     830: client. (Optional)

lib/lp/bugs/templates/bug-attachment-macros.pt
       8: <span class="fieldOptional">Include an attachment (Optional)</span>

lib/lp/bugs/templates/bugtask-macros-listing.pt
       7: :bugtask: (Required) BugTask that will be displayed.
       8: :show_extra_details: (Optional) Boolean determining whether

lib/lp/app/templates/launchpad-form.pt
     119: class="fieldRequired">(Optional)</span>
     145: class="fieldRequired">(Optional)</span>

lib/lp/app/templates/launchpad-widget-macros.pt
      36: title="Required">(Required)</span>
      80: title="Required">(Required)</span>

lib/lp/soyuz/templates/archive-delete-packages.pt
      74: <span class="formHelp">(Optional)</span>