People flag bitcoin submissions if they have no information or context.

I guess some people are flagging Bitcoin articles in general because there are just so many of them and they are not particularly interesting.

Some of them Trigger the flamewar detector. https://news.ycombinator.com/item?id=7359084 is an example with appalling quality comments.

There have been many submissions about the identity of satoshi in the past few days. I'd link to a few but I genuinely cannot use the HN search on mobile.