Yeah I've always seen them as self serving. I rarely see many interactions with the comments, seems like a one way trasaction where the influencer benefits from all the comments and the community get very little from it
They get a lot from those tweets but literally give from little to nothing to the followers that they have. They are stepping only as an influencer but not what an influencer should be but becomes a shill for those altcoins that they put at their tweets. There's no way to stop this until many of their followers start to cancel them for such acts instead of focusing into informing and educating their followers with the proper terms and strategies in investing in cryptocurrencies.