I know I often do. I would rather have bugs reports, than none.
People are lazy.
In the middle of an upgrade when one gets 10 bugs, One does not have time to research them. You just report this, this, and that went wrong, this is all the data I have, thought you would like to know. And I say I like to get reports like that. I may ask for more information, but I do not demand the reporter do anything more. Oh, suggestions are fine.