Tiny data point:
My brokerage firm has emailed me four separate emails in the past four days inviting me (begging me?) to participate in their securities lending program. I decided to give 'em a call. Conversation went something lke this:
Broker: Good morning sir how can I help you?
Me: I'm calling about all the emails you guys have been sending--four so far this week--trying to get me to join the securities lending program.
Broker: Yes, sir!
Me: Let's cut to the chase. You want me to make my stock available for others to short, right?
Broker: Yes sir, that's right!
Me: This is about Tesla, isn't it.
Broker: (chuckling) Yes, absolutely, sir!
Me: Well, let me make this clear. I don't want to give any aid or comfort to anyone shorting Tesla stock. I want them to suffer and hurt as much as possible. I want to watch them squirm when the mother of all short squeezes hits them by surprise. So, you will not be profiting by making any of *my* Tesla shares available for shorting, that's for sure. Are we clear?
Broker: (laughing) Yes sir! Got it! We'll take your name off the list.
Me: Very good. Thanks, bye.
Broker: Bye