Creating a Party needs improvement!

Parties when creating them need an option to limit party members. If I need one person for a boss fight I should be able to make public party & set party limit to 1 so only 1 person can join. When 5 people join & warp the second they join it's hard to keep a boss scaled for 2 people when that's what you want! Also people who you ignore or have ignored you should not be able to join your public parties.

I shouldn't have to help someone who's taken the time to ignore me but then wants to jump in my party when they need a boss kill through public parties. This is stalking.