For example: https://www.youtube.com/watch?v=Qp3gy_CLXho
Or you can read, e.g. Snopes' explanation that being convicted of making bombs to blow up a government building doesn't make one a "convicted terrorist" because there's no such crime as "terrorism."
If you're referring to this Snopes (https://www.snopes.com/fact-check/blm-terrorist-rosenberg/), the "mixed" ruling seems perfectly reasonable. Saying someone is a "convicted terrorist" is a fuzzy claim, because there is no such charge one can be convicted of. It's not like "convicted murderer".
That's how fact checking sites usually introduce bias--they don't actually lie about literal facts, they just have shifting standards about when things need to be absolutely literally true, when they can give false impressions, and what counts as "mostly" when something is mostly true or false or mixed.
It's weird that the group that is getting the most dangerous misinformation about Covid has a better idea of the risks of it. And this is one area in which fact checking has been prominent and possibly over-zealous. It can shut down conversations too quickly instead of letting people come to understanding.
I think it's at least partially because it's hard to advocate for a middle-of-the-road position, each side thinks you're an undercover partisan for the other. So it's hard to advocate for something like quit complaining about masks, they're not that great but they are helping, vaccines work and you should get them unless you have medical issues, but they're not 100%, some lockdowns probably cause more harm than help, some of the rules are either nonsense or enforced in silly ways that have nothing to do with Covid risk, and the virus is dangerous but the risk isn't evenly distributed across all populations, and even if it's not a big risk to you personally, you're being a real jerk if you go out a lot and help unknowingly spread it.
For the latter point, bombing government buildings is a central example of terrorism and nobody thinks there's a crime of "terrorism" when they hear "convicted terrorist." By the same standard, Snopes would have to say that the 9-11 hijackers were not terrorists. The slipperiness of the word is entirely a matter of people who want it to be about the goodness or badness of the person instead of achieving political goals by initiating violence.
As for Rosenberg, you're focusing on the terrorism and ignoring the convicted. She was not convicted of terrorism, or even of bombing buildings, but of explosives possession. The word "convicted" has to mean something. I believe that O.J. Simpson is a murderer, but calling him a "convicted murderer" would be false. If the claim was "convicted of felonies due to her involvement with a terrorist organization", there would be a much better case for "true."
p.s. the crimes she was convicted of did not include bombing government buildings, that part of the tweet is strictly false.
They could very well have picked a different tweet, it's not like they're forced to pick this and only this tweet.
Both weakman and motte and baileys are old rhetorical tricks, they're not very convincing.
In the absence of evidence for such a tweet, why should I consider the Snopes fact check a 'weakman'?
As for minutiae, that's the whole point of fact checking, to care about minutiae and not whether a statement just generally feels right. It's not about whether Rosenberg is or was a good person, it's about whether the specific claim made about her was unequivocally true.
So why should anyone attempt to prove that Snopes is following this rule when I have yet to see any evidence that this is, in fact, how Snopes operates, when even if we assume it is their standard, they don't appear to be following it very consistently?
That's a very odd burden of proof--asking me to prove that they follow a rule you just made up--don't you think?
If the claim that was flying around the Internet at the time was that Rosenberg is a convicted terrorist, that's the appropriate one to address.
I certainly don't claim that Snopes is perfect, or that their choices never exhibit political bias or bad judgment. But I think this case is an odd one to pick as the key evidence that Snopes is untrustworthy.
This is intentional manipulation, they already know that most people read headlines (which are frequently the least accurate part of any story) and ratings fill a similar role.
Worse, they'll later compile the ratings into statistics and spread the misrepresentations further, all while claiming that technically in paragraph 7 they did admit the thing, which is why that's called a motte and bailey strategy.
the label terrorism is usually only successful in the most homogenos and brainwashed cultures, where all complexity and nuance is stripped away. it's great for propaganda or when you need to criminalize a whole society of people.