Platonic friendship? Yes, I believe true friendship can be cultivated without meeting face to face. I have a few myself.

Romantic? Nope, I'm sorry, I know many would probably disagree with me, but no way do I consider those actual relationships.
But that's just my opinion.

When two people have never met, never kissed, never held each other, never spent time together doing favourite activities, or doing nothing, never felt the electricity buzzing in the air, never held hands....

Well no, I don't consider that a relationship.

Something to be said for having a so called "online bf" though, no unpleasant surprises...

There's no finding out he has bad breath, no discovering he's super messy, or that his fart smells like sewage.

So maybe online bf's are the perfect bf's!

I personally prefer my flesh and blood bf though