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> I don't need a crash course on C macros in the comments, thank you.

This is an enduring great & terrible thing about sites like HN and reddit: As people become more senior & experienced, junior engineers come in to fill the ranks. You and I don't need a crash course on C macros in the comments. But I promise you, a lot of people here have no idea why #define $(a,b) if(a)b;else is a weird C macro.

How much should HN cater to junior engineers?

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It is nothing to do with seniors vs. juniors but merely a lack understanding as to the intent behind somebody's work. When an acknowledged expert does something out of the ordinary you ask why and try to grasp his pov rather than pointing out obvious trivialities.

> How much should HN cater to junior engineers?

The assumption that HN should cater to junior engineers is curious. It implies a purpose the site has never claimed to have.

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