There is a community rule for flagging questions here in SECSE:
Questions asking us to break the security of a specific system for you are off-topic unless they demonstrate an understanding of the concepts involved and clearly identify a specific problem.
Over my time as a contributor at security stack exchange I do not believe I have seen a single legitimate use of this rule, but more than that, I feel the wording is unhelpful.
I think the clearest support for this statement is the two answers below by moderators stating that the rule is useful for closing questions that are not about breaking the security of a specific system:
It has been an incredibly useful rule for us as mods to get rid of not so many "show me how to hack" questions
it's too broad, but it also requires that the asker be taught a whole foundation of knowledge first before any answer will help. It's that last point that the close reason helps with
I have seen this reason be used as a reason to close generic exploitation/privesc questions against Windows 10 or IIS, which are generic OS and web server, not a "specific system".
The rule also states that it's actually ok to assist someone exploiting a specific system as long as they understand the concepts involved and can clearly formulate the issue they are stuck on. Which seems counter-intuitive for a rule against breaking the system of a specific system.
IMHO this rule should simply be removed or replaced with a more sensible one (if someone wants to suggest an alternative).