☆ Olive ☆ is a user on niu.moe. You can follow them or interact with them if you have an account anywhere in the fediverse. If you don't, you can sign up here.
I'm personally not the biggest fan of hashtags, I mean they're nice for some things, I use them for a variety of things too but it's not like you need them in every post. If you wanna know what your friends are talking about you can always read the TL and join the discussion
@sampo i don't really see much value in these 'trending' systems. What is it good for?