People are getting kidnapped off the street by unspecified federal agencies. It's a pretty sensible time to be nervous about what you publicly broadcast.
At the same time, there is no evidence that this kind of illegal "kidnapping" has really happened. To even push back slightly on this narrative it to "support fascism" in some circles, which is a pretty dangerous position. Yep, pretty sensible to be nervous all around right now.
Your link marks the claim as "mixed truth", which is different from the "no evidence" in your comment text.
I commented on the claim there were illegal kidnappings, which is the part there is no evidence of. What is true, according to the link, is that LE used unmarked vehicles.
And (truth value unknown by Snopes because proving a negative is impossible, but it corresponds with the videos) failed to wear identification or do or say anything that would allow the person being taken by unknown people into an unmarked car to distinguish those people from one of the paramilitary alt-right militias that populates Oregon.
Like you said, proving a negative is impossible, so we just don't know if they wore ID or not.