Boolean tags break format of KEY:VALUE

[go2null]

A value without a key is considered a flag. It's presense indicates the value is TRUE its absence FALSE eg. :waiting-for

Why break the format TAG:VALUE format? That is, why is the following not good?

A key without a value is considered a flag. It's presense indicates the value is TRUE, its absence FALSE eg. waiting-for:

[ramblingjordan]

This was mainly so that the user could still use the colon in one context.

Intention is to avoid escaping of characters. Might be too convoluted.