One thing is certain, we’ll never get everyone to agree here for a number of reasons and personal preferences… However, I’m very inclined to say that (IMHO), this is (comparatively) the best version of this proposal yet.
I see a lot of people worried about others abusing this feature, but honestly, you can argue about that using other aspects of the language as well. I would still rather live with the possible “misuse” of those features in the language than not having them at all.
IMHO, to be more objective about this; I think we should first evaluate if we actually want to support this use-case (and considering @josevalim`s drive to elaborate multiple proposals so far, I’d say that the problem statement is legitimate) and then comparing the current solution with previous proposals to see what are the pros/cons.
All in all, I think we will never reach the ideal solution, but from the possible solutions we already discussed, I personally think that “local accumulators” has the most potential so far.
