There's a limit to how long the name can be, even in Snap! — not an enforced limit as far as I know, but a practical one. You don't want the block you're draggi

There's a limit to how long the name can be, even in Snap! — not an enforced limit as far as I know, but a practical one. You don't want the block you're dragging around to be thousands of pixels wide, it's very inconvenient. So people are naturally going to rename "convert all the upper case letters in the input text ___ into lower case letters" (where ___ represents the input slot) into "convert ___ to lower case" at some point, because they get tired of that one block being so much wider than every other block around it. (Edit to add: especially if they're snapping it into the input of a `map` block, which itself is the list input of "keep items (predicate) from (list)" block. That would get unwieldly really fast). But you know some wag is going to paste the Pevear and Volokhonsky translation of War and Peace into a block name, just to see if he can. :-) So perhaps there does need to be an artificial limit, at 4096 characters or so, on block names.