Trans people assume I am also trans?

(cis woman) Hi, I'm not really sure where else to post this. I want to preface by saying that I would consider myself a huge LGBT ally, I know it's not appropriate to give myself that label as a cis person, but I have had many trans friends and I do personally consider myself pretty vocal about trans rights. I feel bad that I'm even making this post because I feel like it implies that I think being trans is "bad" or something, and that's really not the case :( I really want to make that clear I have a semi popular YouTube channel and I'm constantly getting comments asking if I'm a trans woman, but **from trans people**. Not people trying to be mean or "transvestigate", the comments are actually extremely nice! Stuff like "your transition is going so well!" Or "Love to see another trans person thriving". It would be easier if the comments were mean, but because they're so nice I feel like they're being genuinely sincere and something about me is coming across as trans. It's taken me years to build up confidence in my appearance, so these comments are a little bit disheartening I guess. I'm sorry I'm probably saying this wrong, I really don't mean to be offensive at all. The thing is I don't think I have particularly masculine features, have a soft face, thick lips, and I'm short with a large chest, but that doesn't show up on video. **....I think it might be because I wear chokers?** That sounds kind of crazy, but I'm wearing a choker in almost every video I get comments about that on. I'd rather not post a photo of myself here, but if anyone is curious I might be willing to send a DM. Any thoughts on this would be welcome, including ways to politely respond without making it seem like being trans is a bad thing. EDIT: just to clarify, I'm not frequently talking about trans rights on my actual channel, it comes up occasionally but I don't think that's the reason I'm getting these comments. TL DR; Trans people leave positive comments about my "transition" but I am not trans.