I think in casual conversation "literally" is sometimes used that way but there are actual debates happening in this forum. People are citing data, making cases, presenting arguments based on facts. So in this environment I think literally is expected to mean literally. As in, you've said something inaccurate because "
literally...[such and such fact that contradicts it]."
For example, if someone says that "there are not as many Disney-owned hotels at Walt Disney World than you think" and another posts "literally, there are 25 Disney-owned hotels there, that's a lot!" It would be expected that the 25 is not "just a number" pulled out of thin air, but rather the person actually is citing a fact and that readers can be relatively confident the fact is accurate.
EDIT: I will add the
@Disney Irish did say "literally like" which does indicate it was more likely to be used just as an exaggeration, casually. But otherwise, literally alone with a numerical fact, I would hope is an actual fact.