honestly though, mastodon instances are run and moderated by real people who care about the network, to the point of often paying their own money out-of-pocket to run their instances.
the *one* time i've had to report a post, my instance admin messaged me directly to let me know the action taken about it.
don't be shy to report. it works here. the rules aren't there just to keep things advertiser-friendly.
welcome to mastodon. don't be a dick. hug your local mods/admins.