By whom?  All the evidence has been presented and feedback has been given, so it's up to everyone to read it and make up their own minds about it.  It looks like the consensus among the members who've posted here is that they are alts, and I suspect that's the case.  Do I know that for a fact?  Not really.  Everything mdayonliner presented as far as phone screenshots and the like could be doctored--or they could be genuine.

I've seen enough shenanigans and lying on this forum to be jaded enough to disbelieve anyone on a matter like this, even if they're trusted.  And when you factor in the fact that S_Therapist is a documented account buyer with other alt accounts, it would not surprise me in the least if mdayonliner was an alt.  I don't like the fact that mdayonliner's stated relationship with S_Therapist changed as time went along.  Seems like he was trying to hide something there. 

In any case, I'm pretty sure the reputations of both accounts are irreparably shot and I agree with others who've said that presenting all of this evidence is pointless.  None of it proves beyond a doubt that the two accounts represent two separate individual human beings.