For people that are LFM
You're looking for members to do that Weekly nightfall. You go to destiny tracker and to the LFG page.
Make a group and configure it.
- Group title
- Activity type and level
- Minimum level
Start! And wait... within 3 minutes you have your party together and you can invite each other in the game.
For people that are LFG
Looking for a group on LFG you can now join groups!
- Set a filter for the event you wanna do
- Search for groups
- Join a group
Add the people in the room to your friendslist and start gaming. Use the chat if you don't have a mic!
Sadly Destiny doesn't offer this kind of service but it would be a huge upgrade to matchmaking in general. Keep the public chat room! Start groups together to get stuff done!