"X person" is fighting the Level 15 South Midgard World Boss: the Nidhogg the Dragon. Join this limited world boss fight to earn rewards! Attack World Boss Now! Is this really necessary to be in feed? I don't think should even have option to ask for help on a world boss, just clogs it up in my opinion...
Good luck i have posted this issue up numerous times and so have others. This will always be a 10 from me until world boss is removed out of there. It just doesn't seem to draw the votes in even though everyone complains about it constantly.
We are a little late on implementing this but your feed should be much cleaner of World Boss feed posts. As of this morning only 1 World Boss help request per unique boss will show up on each request to your feed. So what that means is if you are filtering on Boss events and you click on "Older posts" at the bottom of your feed, there is a potential for a duplicate world boss post in that next batch.