I used to have a mobile phone which could take "warm" photos. It could also do "alien vision", and a couple of other neat tricks. People said it was cheesy. You can also attach some APS-C lenses to a Full Frame, and get "romantic" vignetting. If you do that in Photoshop, it's fake. The "creamiest" bokeh you can get is a gaussian blur, unless they know it's photoshopped and then it's no longer "creamy".

There's some kind of emotional response people have to optical distortions which they don't have if they know it's from post-processing.