How do paragraph-initial gallows effect a paragraph?

[ReneZ]

For one thing, the gallows is not just a 'start of paragraph' marker, in the following sense:

If one simply removes it, then the next character becomes the line initial character, but this character does not have the same distribution as all other line-initial characters.
I can refer to You are not allowed to view links. Register or Login to view. for that aspect.

I have not yet tried to understand this better, but feel that it could be important.