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Pretty sure the last 10yrs of stackoverflow proves that this is not a concern.

I'd file this under: things to not worry about.

Sequential numeric ids leak information regarding your operations.

https://en.m.wikipedia.org/wiki/German_tank_problem

This is exactly right, but in my opinion usually not important. If Joe Public, or a competitor, or whoever knows how many posts you have, users you have, administrators you have, etc how much does that actually affect your operation? I guess they can better compete against you in some small way with that information, but in my opinion it's almost never worth the effort to obfuscate. It's like optimizing for a problem you don't have.

> how much does that actually affect your operation?

If it's a business service then the operation is not the end goal but the means to the end.

If it's a business service then the question you should be asking is "should I care that my competitors are able to observe and monitor my service metrics?".

Quite often, businesses do care a lot.

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