I'm not 100% sure, but I'll have a stab at this; the formatting on the site uses a variation of a file format called chordpro (see this site for more details: https://www.chordpro.org/chordpro/index.html), although some people are not aware of how to use it so they write their words/music verbatim with the chords aligning above the text, such as:
G A7
Love me Tender, Love me true ...
Whilst the chordpro version includes the chords in square brackets inline, and looks like:
[G]Love me tender,[A7]Love me true ...
Which then renders out as:
[G]Love me tender,[A7]Love me true ...
Note also that in the forums, this needs to be written as:
[song]
{st: Artist}
{t: Title}
[G]Love me tender,[A7]Love me true ...
[/song]
Sometimes people will mix and match these two styles as well, which can lead the parser to make mistakes, because it's not sure what it's dealing with ....
I'm not sure if I answered the original question, but I hope that helps.
Cheers
Richard