There was no one else doing what he did. Awakening JW's were still terrified of Watchtower and afraid of losing absolutely everything if they showed their faces on YouTube. Lloyd grabbed the opportunity and ran with it. And all the Blind bowed down and thanked the great "seeing one".
Actually there were plenty of people doing you tube videos and running websites and help groups.
The big difference with Lloyd was that he was the first one that started demanding money for what he was doing. He was fortunate that Patreon and Cash App/Super chats arrived not long after for him to push. Whereas with those who went before, money was never an issue.
His pompous, self important manner and earnest sounding voice probably lead naive people to put trust in him and see him as more believable and intelligent than he really was*. (He certainly took the majority of his stuff from JWfacts.com). His imposing height also probably swayed people to defer to him, as studies have shown psychologically it has that effect on people.
*Although It was quite apparent on this site that he was neurotic at the very least.