On some sites such as SO, it may happen that for specific review queues there are hundreds (thousands?) of outstanding reviews. For such queues, users may be allowed to perform up to 40 (instead of 20) reviews on a single day. Here is a sample of some of those queues (as shown to me on the
/review page today):
2.2k posts (First posts): Thank you for reviewing 40 first posts today; come back in 8 hours to continue reviewing.
139 posts (Late answers): Thank you for reviewing 40 late answers today; come back in 8 hours to continue reviewing.
131 posts (Low quality posts): Thank you for reviewing 20 low quality posts today; come back in 8 hours to continue reviewing.
And even though you cannot tell from the above sample, for all these 3 queues, I already performed 40 reviews. So for the low quality posts queue, the number is actually 40, and not 20.
At first I thought "hm, this might be some caching issue or something, give it some time and it'll probably show as 40 instead of 20 also". However, that does not appear to be the case. Instead, what seems to happen is:
If the number of outstanding reviews (like the 131) increases enough, e.g. to somewhere around 150 or so, then the 20 will become 40 as well.
If the number of outstanding reviews (like the 131) does not increase anymore that day, i.e. it always remains 131 or less, then the 20 will never become 40.
If the number of outstanding reviews (like the 139 for the Late answers) goes down enough again (say to somewhere below 100 or so), then the 40 (for Late answers) will become 20 again.
My question: what's going on here, is this the intended design? If so: what is the actual design? Or is it some undocumented feature (aka bug)?
Update: On Apr 18, 2021 (early morning, before performing any Low quality posts reviews, the number of outstanding reviews was 156. After I completed 40 reviews there were 111 outstanding reviews, and at that point this is what was (correctly) shown:
111 posts (Low quality posts): Thank you for reviewing 40 first posts today; come back in 15 hours to continue reviewing.
However, about 5 hours later, without me performing any additional reviews (since I had reached my daily limit of 40 about 5 hours before), this is what was shown:
109 posts (Low quality posts): Thank you for reviewing 20 first posts today; come back in 15 hours to continue reviewing.
That 20 is wrong, it was already 40 since about 5 hours ago ...
- How do the review limits work? is not a duplicate question, e.g. because the (accepted) answer to it states “... after 20 reviews in a given queue*, you're done for the day ...”, which is clearly not what my question is about.
- The Complete Rate-Limiting Guide is not a duplicate question either, e.g. because the (accepted) answer to it explains (within the reviews part of it) what the maximum number of reviews for a given queue is, while my question is about the mismatch between the number (40 or 20) as shown, as compared to the correct number (it is actually 40 for each of the 3 queues).