"Power Pinners Will Be Blocked! Power pinning causes boards to slow down & freeze. You are not the only one pinning from any given board at any given time. Power pinners are people who pin 10 - 20 - 30 + pins in a matter of minutes, causing boards to slow down & freeze. Be respectful. IF YOU FREEZE MY BOARDS WHILE I AM WORKING ON THEM, I WILL BLOCK YOU.