I mean seriously, making fun of names leads to genocide? How dramatic.
Making fun of names because they are foreign or different? It's a step on the path, yes. It's a long path, with many actions much worse than making fun of names (such as racially motivated killings).
But it is a step down that horrific path.
> An employee was claiming that it is GENOCIDAL!!!
While I can't speak to what was actually said, this statement is false according to the reporting in the article. Nobody was quoted as saying that making fun of names is genocidal, but rather that it contributes to a society where genocide, mass killings, or targeted hate killings are possible.
I feel you're attacking a straw-man of the argument, to make it intentionally silly, in an attempt to justify the manager's actions.
You can read DHH’s accounting of why he posted the old chat log. It really was not petty.