To keep your account active, log in at least every 30 days

Keeping the angst going. What a life we lead these days.

And how is this predicated on deleting inactive accounts? Companies usually use inactive accounts to inflate the active user stats, by presenting them as active.

Sure, they can then say "everybody remaining has logged within 30 days, so is an active user" which would not be accurate (could just be logging not to lose the account or whatever). But they could inflate their active user count way more, in even muddier waters, by keeping the old inactive accounts and overcounting (as is the standard SV practice).

So, if inflating their active users was the intention, deleting inactive accounts is the opposite of convenient.