Voter ID generally isn't supposed to be proof of residence, its proof of identity; it exists to prove that the voter is the person registered, not that the registered person is authorized to vote.
Most IDs acceptable for voting do not prove authorization (or even “authorization but for the potential of disqualification by felony”), so not accepting college ID because it doesn't prove authorization to vote is...not well justified, even in the public logic of voter ID.
Of course, voter ID proponents have let out the private partisan internal logic lots of times when they thought only people aligned with their faction were listening, so we don't need to speculate why the rules are inconsistent with the public logic.
The truth is they have outsourced fact checking to the "International Fact-Checking Network at Poynter" who has to uphold standards not just freely enforce whatever ideology tickles their fancy.
Knowing one low-level employee of one of the subcontractors involved; it works something like this:
1. An article is posted to Facebook/Twitter/etc and is automatically flagged based on keywords or manually flagged based on user reports of misinformation.
2. Fact checking organizations take up fact-checking of the article for a small fee.
3. In this case for the organization I am personally aware of, the fact checking company has a large number of independent contractors who can research a "batch" of claims/articles.
4. Usually the jobs are broken up into simple questions.
5. You along with many others provide answers and must provide pertinent factual sources supporting the veracity of your assessment that this is either true, partly false, or false along with other categories such as if it is clearly and obviously satire.
6. Your answers are judged vs the final determination. Those who consistently skew in any direction are dismissed from eligibility to participate in the future.
7. The fact checking organization once it has enough answers for confidence has higher-level employees double-check the answer and source information.
8. The fact checking organization submits it's formal assessment on the article/opinion to the IFCN.
9. Companies like Facebook use multiple IFCN assessments and perhaps other fact check assessments to provide pertinent information that corrects misinformation that has spread rampantly over the last year like "Joe Biden wants to defund police departments across the US" with corrections like "After being asked if "We can reduce the responsibilities assigned to the police and redirect some of the funding for police into social services, mental health counselling, and affordable housing." Mr Biden has answered "Yes" to a question about whether he agrees with this redirecting of funding.
I may be slightly off in how this works but the overall program is the same for most social networks that care about misinformation. There is more information in the sources below: Sources:
https://www.facebook.com/business/help/2593586717571940?id=6...