I have no idea what's wrong with posts about God. It wasn't trying to evangelise anyone. I'm not a Christian but I find those quotes nice. I think this shouldn't be only atheist thread. This is a spirituality forum and it's natural there will be posts about God.
Or the only religion allowed is Buddhism, Taoism and new age but no abrahamic faiths? Why? If there can't be Christianity, there shouldn't be Buddhism either.
Sorry but this is how I see it. I hate when Christians discriminate others and I hate when non Christians discriminate Christians. It's exactly the same.

I think there can be found a lot in common and don't quite get why in this case there was a reason to get offended or triggered. I personally see no reason for such reactions.

I wouldn't like if there were some hateful quotes about God's wrath and he'll, but there wasn't mentioned anything like that! And everyone can imagine God however they like.