There's nothing wrong with speculation that's clearly labeled as speculation.

There certainly can be. Reputation risk/being canceled, misinformation spreading, ethicial/legal issues depending on the topic, public opinion influence, authority problems, not understanding the community you are participating in, etc.

Everybody speculates on here and the rest of the internet all the time.

Has the community decided _how_ we can talk about things now?

Seems like their comment engages a curious person to wonder how likely it might be. That's as much value as I generally expect to get from any comment.

We’re all shit-posting here