That's how you see it because you are entirely familiar with it. Punctuation and prudent whitespace can especially help a newcomer to parse any kind of semantic content. "Reeval" and "re-eval" may convey the same meaning but the first is more confusing to the uninitiated and likely to mentally parse as "ree-val." I didn't mean that @{$foo} would be automatically understood, only that it is more likely to convey the meaning "array" which is a better starting point for a novice than "crazy compound sigil which I can't seem to find in any of the documents or Google."