mik
you are arguing to the wall
yes we know what Hashem means.
some feel more comfortable writing H-shem than Hashem (perhaps because we say “Hashem” so frequently it, to some, has taken on a bit of Kedushah itself, there are other reasons).
does that bother you? do you feel a need to speak out and chastise someone who does this? has anyone berated you for not doing this? do you feel anger against those who do something that you do not?