How come our IDs don't use [g-z]?

[WilcoFiers]

I noticed this going through our list of rules this week, having all the URLs in one long list. With very few exceptions, the IDs use either a number, or the letters A through F. It strikes me that that's a hex range, and that when we're creating IDs we're not using the full [0-9a-z] range.

Looking more closely, the only rules that I found actually had letters in the G-Z range were ones I authored.

To be specific, there is a list of 50 rules here #1120 (comment), only 4 of them use chars in G-Z in their ID.

[Jym77]

https://act-rules.github.io/pages/design/rule-design/#rule-identifier

The 6-digit identifier is created using a random hex generator, such as https://www.browserling.com/tools/random-hex. The identifier remains the same if the rule name changes.

That doesn't explicitly restrict to hexadecimal identifiers but certainly pushes strongly in that direction…

[WilcoFiers]

Here's a generator that will give us what we need:

https://www.random.org/strings/?num=1&len=6&digits=on&loweralpha=on&unique=on&format=html&rnd=new