hi hello salut. do you find that having a tumblr account to promote fanfictions is helpful or do readers find your fics regardless? i am publishing first time ever. thank you greatly, big fan

Yeah, I'd say so.

For one you have another platform to let readers know "hey! there's a new fic of the thing you like!" Not every reader sorts fics on 'most recent' and only go off 'most kudos'ed/viewed/bookmarked'. A new fic will have an incredibly hard time to land a high spot with those filters. Hell, some only go off other people's recs... So any additional place you can let readers know of your fics existence helps.

It also makes it much easier for readers to reblog your fic. If I read a fic and like it, I probably wouldn't make my own post like 'oh this fic i read was really nice'. I would, however, reblog someone's tumblr post. This helps your fic (potentially) read a wider audience.

Just make sure to properly tag your fics so that—even when you don't have many followers—people can still find your fic!