I see what you mean. Yes, I do verify it or do it in an environment where a mistake isn't going to cripple an application or cause some crisis. But in most cases once it points out the argument for the command or the command name - that usually jogs my memory to know that its correct. Lately it's been mostly when creating dockerfiles and also stored procedure syntax. I'm not really good with keeping notes.
So, to repeat the question:
Do you just run the command and hope? Or do you double-check using the manpage that it isn't going to do something drastic and unexpected?