These and Instagram seem to be the main locii of conversation for a topic I'm interested in. Instagram is a no because Meta. Just trying to keep myself off of the big data mining sites and search results are a bit of a hot mess.

Edit: Please, no more splaining how there isn’t any privacy on the net. There’s what can be scraped, what can be gathered from cookies (which I’m as careful as I can be about), and there’s what we make it easy for corporations to collect by using their products. I’m asking about the latter for Discord and Tumblr. It’s not that I’m unaware of the general problem (otherwise I wouldn’t be asking), it’s just that I’m out of the loop on specifics for these sites.