I agree with these statements, but as I see it as such a sexual thing it has to be private which is probably why I so aggressively ignore PDA. However quick peck kisses are sort of neutral. Intimate but not romantic or sexual (though wanting more than 3 a day is being greedy, and sometimes I'm not even comfortable with 1).
Hand holding is a friendly thing, but linking arms is a romantic thing, but (I'm weird, I know) an arm around the shoulders is a mild sexual thing. Putting on some sort of cream/moisturiser with light rubbing is neutral or sexual, while massage -especially with oil- is a big honking no (there is some sort of repulsion at work but I'm not sure if it is specifically romantic). Sharing a bed is never romantic. Feeding someone else food is entirely romantic and it flicks all my repulsion boxes ~ I have never eaten food off of someone else or vice versa but seeing body shots squicks me out so I think I would be fairly repulsed by that too even if it is meant to be sexual. I guess baby talk and dirty talk are different things but both are a fairly big no from me so they might as well be the same. I think I am fairly indifferent to pet names, I can be accepting of them even if they are neutral, romantic or sexual. However there are some pet names I dislike, some I specifically identify as familial, and one I recognise as sexual. I guess it really depends on how I perceive the name and I react accordingly?
One I forgot to mention before is dancing. I don't particularly think of dancing as romantic, probably because when I was prepubescent I did years of modern dance training and took formal dancing lessons. Dancing with someone else strengthens a connection, be it friendship or sexual........so I tend to only dance with people I already like.