The wording is actually horrible.
On the screenshot, there's no indication of what is being paused, or that you have to hold shift. (Oh yeah, also, if the filter box has focus, holding shift does nothing...)
And the tip given in the "snowman" thing... first, it's referred to as a "hint" not as "documentation" or even a "how to use this addon" or anything. And the actual "hint" is almost useless. "holding SHIFT on the find-premade tab"... (except when the filter box has focus)... "will PAUSE the list until released"... Pause it from doing what? You assume too much of your users.
Listen, I get it... as a software developer myself, I understand the problem. YOU know your software backwards and forwards... but it's very easy to lose perspective... You don't see the program the way a brand new user sees it, so it's confusing when people don't "get it". It's quite baffling sometimes when a user just doesn't understand something that seems so intuitive to you.
This is why it's beneficial for developers to try their hand at documentation writing, especially on their own programs. I had to do that for a contract last year, and I actually found some ways my own program could have its flow and layout improved simply because I had to write down exactly how to use it for a brand new user under the assumption they had never seen it before.
Don't take it so damn personally, Tiny. You do good work... but you can do better, and improve yourself.
(This is 15+ years of development experience, and 4+ years of teacher education talking... )