Pls cant we know when people are online

Answer 1

No

Answer 2

so we can know who to challenge

Answer 3

You have 24 hours for someone to respond to a challenge. Just because they're online doesn't mean they will. Finally, there's the issue of privacy. Implementing that system is time-consuming for SL devs and there's no justifiable reason for it. Sorry mate.

Answer 4

Why would that be important?

Answer 5

Lol jamb question