30 minutes ago, [this feature request][1] was tagged [tag:status-completed]:

> I would like to raise the bar for **late answers** to enter the **Late
> Answers Review Queue** to 50 rep, which is the threshold after which
> users gain the ability **to comment**. Here are some answers that were
> posted by users with between 10 to 50 rep (yes, there's a little
> selection bias to be sure. I suspect most/all of these will be 10k
> links only by the time you're reading this. Note, all of these are
> from the **last 5 hours.**



Quoting [the proposal by SE employee Jon Ericson][2]:

> Raising the bar to 100 would require changing two variables at once.
> Since that would make it harder to evaluate each individual change,
> I'd like to try raising the reputation for getting enqueued to the
> Late Answer reviews to 50 and reconsider upping it to 100 at some
> point in the future.

That seems to be it.

It's definitely a bug, though. From [a comment][3]:

> Just to note, the answers should not be older than a month and the
> current spike *should* be temporary. –  Jon Ericson♦


  [1]: http://meta.stackexchange.com/q/266696/270345
  [2]: http://meta.stackexchange.com/a/267080/270345
  [3]: http://meta.stackexchange.com/questions/266696/can-we-raise-the-bar-for-reputation-for-late-answers-to-enter-the-review-queue#comment866393_267080