Per my observations through recent months, tightened quality filter (1, 2) has made VLQ questions very rare bird at Stack Overflow and at Programmers.
- When "eligible" posts are as rare, having flag for these could do more harm than good. Flagging the right way is a skill that needs practice and flagger who had not seen true VLQ questions for weeks or even months, is at risk of misusing the flag, casting it wrong.
Asker has to try real hard to make a post that would both 1) look like unsalvageable through editing and 2) pass the filter with its current settings. These two "criteria" almost exclude each other.
For the sake of completeness, I think that before dropping this flag for questions it would make sense to study questions flagged VLQ at sites that may have lower settings of quality filter.