[Grue3]

But these short snippets are useless because you can't easily copy paste them, especially with some programming languages that are whitespace-significant (looking at you, Python). And I don't understand how triple ticks are wasted lines, because you need to surround a code block with empty lines anyway while triple ticks work straight after line break.

[recursive]

If you're using your clipboard, it's invariably going to be at the wrong level of indentation regardless. What's the correct level of indentation? 0? 1? more? There's no generally correct answer, so you're going to have to use the block indent feature on your editor anyway.