Do you not worry that your message will get screenshotted and posted on reddit or twitter? I don't mind buying follower I just don't want to make it obvious, as it stands I only have 19 - 20 followers.
You can't afford to worry about such things if you want to escape inceldom. That's just what men have to deal with today. If you only have 20 followers, why do you care? lol. Girls on Instagram (even if they have Tinder accs, they're often not active on them) aren't subject to the same level of competition as girls on Tinder. Girls on Tinder have thousands of matches and messages, you have no chance. Most girls on Insta don't accept messages from randoms, maybe 30-40% do. You can reply to their stories etc and pester them, unlike on Tinder, where you basically just get one message/attempt.
Have you ever met anyone taking this route of sending dick pics?
I've never met any girl ever lol. I mostly troll them. But a couple of girls find me quite amusing and respond to me now if I talk to them. A couple more will semi-respond. Harassing girls is the norm nowadays and often leads to relationships, don't be put off by the metoo crap that girls spout publicly. Social media is built for harassment, girls love attention and they will block you if they truly don't want to talk to you. If you can't be low inhib online then you're never going to get a girl. You can also pretend you have money, put some pics of high status objects like sports cars on your profile etc.
This is probably the funniest interaction I've had (image below). Note to mods: this is on a COMPLETELY anonymous burner account, with no pictures of me or pictures of anything. I opened with a dick pic which led to an argument. Then I just replied to her stories with trolly comments and we've had the odd conversation. She's hot as well. And I put zero effort into it. I'm an introvert and just use it for faps and cheap kicks mostly. If you put effort into it, follow/message thousands of girls, you can do much better.
The main problem is finding girls who are local. There's a limited supply. And the main challenge talking to girls (aside from being completely unable to even contact 80% of them online kek) is finding the right balance between being nice (without being boring) and being entertaining (without offending them).