0. Separate suggestions should really be different posts so that people can "Like!" individual ideas.
See this post.
Not a bad idea, but the way things are now, if the rest of the party doesn't need to see the mark, you can still place it and they can ignore it.
All the "Refer to comment" parties are on the "Other" tab because they are things "other" than DR, dungeons, guildhests, trials, raids, PvP, FATEs, treasure maps, elite hunts, Diadem, and Deep Dungeon...We could maybe make use of tabs for "Trade" and "Roleplay", but it wouldn't make sense to have tabs for LFM/LFG/realestate. Everyone in the party finder is looking for someone or somefew. If people take the time to set up their PF listing right, people who are just looking for one or two more can be told apart because their party listings will be for just partial parties. As for realestate, that's a banned activity that falls under trade fraud, so it doesn't need a tab or icon of its own.