I see some important topics are being posted on off-topic board or being moved to that for some reason. I do not think that is their appropriate place and these topics even got merits too. That proves these topics are not spammy.
7000 BTC stolen from binance- Could have just been put/moved there because there were so many topics about the Binance hack that day
- Newbie started the thread, probably did not knw where to post.
This can belong to the politics and society board but it's an old topic, probably the politics and society board was less popular by then.
Since it was about Github and not BTC or crypto, the user probably thought the off topic board was the right place to make the post
Bottom line, different people post in the offtopic board for different reasons