Where it comes to the use of symbolself pronouns - e.g. emojis or unicode as pronouns - we don't tend to actively use those or expect people to use them. However, they are a form of self-expression for us, and there are reasons some of us prefer unicode over emojis for such things.
Symbolself pronouns
Many of our headmates who personally remember being on the older internet prefer to use older neopronouns as well as unicodeself pronouns, because they like signaling that they have more modern concepts of gender and expression, but they are still tied to an older time.
Both the double male symbol and the lambda symbol (gay male and lesbian symbols respectively) have unicode, so some of our headmates in those demographics use those unicodeself pronouns.
There is also an ankh unicode, and much of our system are Kemeticists. Likewise, there is unicode for the sun, the moon, and pentagrams (both directions), all of which are relevant to our spirituality.
The biohazard symbol is used as a unicodeself pronoun by headmates who feel that they have something dangerous or hazardous about them. Whether this is an accurate belief of them to have is debatable and can depend on the situation, but it's better to let them express this through a symbolself pronoun than actively wallowing in self-deprecation.