Review of invites. Has it always been like this or is this a new feature?

Question

Habr

Today I was given invites. Sent to some good people. And when I once again went in to send it to another good person, I saw this:



And next to my very first invitee, there is no such cross. Has it been like this for a long time or did I miss something in the Rules?

Answer 1

This has been working since at least November of the year before last (2009) .

Answer 2

Oh, I would love to!
One asked me for an invite, and then he threw it at work. The third month is encrypted, including it is not shown here, but it's a pity for the invite.

Answer 3

You can revoke an invite until the person has activated it. After this point, you can't.

Answer 4

It turns out that only unused invites can be withdrawn. Thanks I'll know. eight)