Thief is not a genius person. Even if they swallow and digest your design, they won't be able to poop out a unique idea to grow that stolen concept. And like aggie said below👇"I've never seen someone else-atleast here- be so invested is dinosaurs". So I think it's safe to draw here.

I wouldn't. I wouldn't wait to get rights on theme and then post them. Jf you want to post them her I recommend making them on another app where you can do more and then using a postbord. Though there is respect in the artist community and stealing art is a big thing, it it likely to still happen.

Iv had similar worries in the past cus I have so many ideas on what to draw. tbh I think iv even been slightly ripped off before but I would just say just draw it here I don't see anyone willingly wanting to steal. I'd say go for it but its your choice

Your content is pretty unique, I dont think anyone would want to steal that, honestly. Because I've never seen someone else–atleast here– be so invested is dinosaurs, haha. But in the end the choice is up to you.... I personally would love to see ur ideas

Draw them if you want to