This is a giant waste of time as opposed to you spending 2 minutes writing the ticket, taking a screen shot and attaching it.
Pretty please, copy and paste the error message, don't send a screen shot of a dialog box with a text error message displayed in it.
1) You might actually read the error message and it might tell you exactly what to do to fix it.
2) If I don't know what the problem is from seeing the error, I'll copy paste it into google and that solves the problem a fair fraction of the time. Sometimes less time than it takes to type in the text I'm reading off of an image.
3) You waste time taking the screen shot and attaching it. You waste my time opening an attachment and retranslating text back into a useable format. Plus the wasted storage and network resources.
Unless your complaint is about visual design/layout etc. a screenshot is almost always the wrong thing to do.
This PSA brought to you by a former employee of a technical company whose client services department would routinely embed screenshots in word documents and attach them to tickets when one sentence in the body of the ticket was all that was necessary and *wasn't even captured in the image*.
If a picture is worth a thousand words, then don't use a picture when 10 words will do.