Because of bounty campaigns, I needed Facebook,
Twitter, and other social media accounts, preferably with millions of followers very fast. I tried to attract followers to my
Twitter account by posting regularly and made a lot of promotions. Despite all these efforts in almost 7 years on my original Twitter account I had only 250 followers. Fortunately, I found a cure for it.
Only 250 followers in 7 years is too low number, it should be at least ten times that much. I open my Twitter account in 2016 and I managed to get around 3000 followers in next 2 years, without any extra help of sites that you are mentioning. But this was some other time, there are dozens of threads on this forum where people post their Twitter links and follow each other.
I am not sure how Facebook&Twitter bounty campaigns set rules today, but before we have regular Twitter campaigns which pay in bitcoin for retweet and posting tweets on a weekly basis. One of the rules is that user is have 90%+ of crypto related followers, and by using Twidens you get some random, not crypto related users or you can set some filters?