As Daniela says, I also don't think it's necessary. Yes, it has happened to me and I accepted a wrong invite. But this hasn't been really a problem. At the same moment, my partner wanted to invite me I got a cold invite and accepted. Of course I was surprised, but then esplained what has happened and left the room.
Perhaps a nice way to meet new people
@ Dotti:
There seems to be a significant wait time before entering the room
No, if there is no connection problem and if the invited partner accepts the room is starting at once.
One idea, I don't know if it's possible... you just can invite the person you are chatting to and all other members are blocked. But I think, it would be necessary to change a lot in the software/database.