The other motivation for me is to drastically reduce boilerplate code. I can’t believe people here are saying they never use macros, they are so good for this that avoiding them sounds to me like a skill issue! Overuse can damage readability, sure, but so can pretending macros are not an option.
Operatives do that for me, better than macros. Parent is correct that macros are compile time, which gives them a performance advantage over operatives - but IMO, they're not better ergonomically. I find operatives simpler, cleaner and more powerful.