Hey Lucius, since you have been using it for a while, have a question for you. If you use such a service, would you get shadow banned? Pretty sure Twitter has algorithms to detect how active users are (ie. whether they engage in your tweets or not). If you have a massive following with little engagement, would this mean trouble?...

... I use this website by myself for almost 2 years and in 4 months I managed to gain 5,000 followers for free, without any ban or block of my Twitter account. I still use this service and add a few new followers on a daily basis...