Firstly it was not me who deleted your post although I would have done so if I had seen it first.
If I had written this answer I most likely not have checked it.
We make it far too easy for question askers already. I see it as their responsibility to check my answer.
If they copy without understanding then I WANT them to get it wrong!
If they correct it themselves that is good.
If they politely point out the error or ask for guidance because it does not make sense to them that is great.
That would indicate to me that I am actually teaching them and not just talking to thin air or facilitating mindless cheating.