If you have no preferred pronouns, just say (none) or something
This will help make people feel more comfortable in this comm and has a side effect of showing you support trans people when making comments in other communities. It will also make reactionaries seethe and make it easier for mods to purge them, and make trans people feel safer all over the fediverse.
Although I’m a cis woman, I have never felt especially pleased with being lumped into this category. I have never listed my pronouns before, ever, and I avoid listing my gender if possible, because I do not want the first thing people to know about me be my gender and then view me through that lens. I have always appreciated the trans community overlooks my femaleness and sees me instead. In real life daily, to my great displeasure I am lumped into one of two boxes; the internet is a welcome reprieve.
I am not nonbinary, I do not prefer they/them. I go by she/her, but I don’t want to advertise this. I have my own struggles with gender, even if I’m ultimately cis, and forcing me to report my gender in my username seems frankly gender essentialist.
I did not choose my pronouns.
What should I write? (none) is wrong, because I can be referred to with pronouns.
(ally) might be nice, except in LGBTIA+, “Ally” implies being straight, and I’m not straight.
How about an empty ()? to indicate I acknowledge the system but opt out personally. Or something cute like (friend), or comrade (but I don’t know all the implications of that)
an empty () is completely valid, imo. or even (friend) or (ally) or (any) or something. i definitely would recommend discussing with yor, she could probably help explain why this is a rule, but i get you.