Extraneous numeral 4 in upload limit calculation

My upload limit calculation reads:

max(10 + (approved:90 / 10) - (deleted:0 / 4), 4) - pending:7 = 12

and I can't figure out what that bold 4 signifies. It's present in every sub-contributor user's profile I've looked at.

It means that the lowest an upload limit can be is 4.

Read it this way:

max(x, 4) - pending

The max() function picks the largest number supplied to it, so even if x becomes negative through lots of deletions, a user still has 4 uploads.

Ah! I had wondered what happens to a user with 40 uploads, all deleted. Perhaps if I had a programming background, this would have been intuitive to parse.

about:upload limits doesn't convey that the lowest number of upload slots a user can have is four, and also prominently features a broken link. I'd fix these issues, but I don't know where the link should point instead, and I'm probably not the one to create the phrasing for the other thing.

hemoglobin said:

about:upload limits doesn't convey that the lowest number of upload slots a user can have is four, and also prominently features a broken link. I'd fix these issues, but I don't know where the link should point instead, and I'm probably not the one to create the phrasing for the other thing.

I updated the page.