I presume that Ekko posted that thing about the person posting after him as an obvious joke.
Obviously there's no way to remotely discern someone's alignment because they are the next poster in the succession without even knowing what they would post when they do lol.
That hypothetical next poster would strike as basically NAI before they even posted, or more accurately not strike at all.
And even if what they posted was not factored apriori posting early game doesn't strike as much of an alignment indicator to me, expecially if posting the classical one line opener. That doesn't put eventual scums in a dire situation and it's actually an easy way to try to fit in.
i miss these high quality beta posts
according to my stats, the next person posting after me there is 99% town
mafia will feel like they will get questioned if they post after me, or will worry that its a trick question or post
alternatively knight could of just posted without reading, which is also a more town indicative than mafia indicative behavior
knight is 99% town for me now