KUW:
how to remove it
You say you cannot complete the quest, but it’s a task from an event that ended many months ago.
How to post links in the forums without Trust Level 3
Blizzard’s forums operate on back-end software called Discourse. What you are / are not allowed to post is determined by your Trust Level. Trust Level is increased by making threads / posts, reading threads / posts, liking posts, number of days visiting the forums. Without Trust Level 3 posters cannot post clickable hyperlinks (to non-Blizzard domains) or embed pictures.
For non-TL3 posters, in order to post hyperlinks follow this procedure…