The following image shows a three-line Block Quote; starting at the beginning of the first line and ending at the end of the third line:

However, the end of the Block Quote is not identified and everything after these three lines (not pictured) has syntax highlighting as though it were commented out - until a new line starts with */.
This (pictured) is a valid example of AHK's implementation of Block Quotes, in that code with this type of Block Quote complies without so much as a warning.