I also do it like this. I have several casinos I play in, and I dont see no big point in registering in a new casino. If something works well for me, I dont see reason to go and look for something different. However, if I notice a new casino signature campaign being everywhere on the forum (lets say aggressive advertisement), signature looks interesting and attractive, then I might click on it to have a look on casino design - that means if I would sign-in for that new casino, it would be by referral link.
Yeah there is a danger in being urged to find new casinos all the time, this is actually one of the often ways that people get scammed. They chase bonuses, promotions, and always something new and this increases the chance to get scammed by a lot. It is better to stick to things that work unless there is a good reason to make the switch. But the reason has to be really good, and for people to be able to do a relevant analysis of that they have to understand all of the benefits of the casino. For example some people would rush to a new casino over a promotional $50 bonus not realizing that the utility that they are deriving from the places that they place at already is much higher. No problems, no manipulation, no exit scam. unfortunately people get used to the things to the point that they take them for granted instead of appreciating them. But like I said, I would not give someone the benefit of endless earning from my account just because they had a banner somewhere. They need to earn it somehow, but sadly we live in times where people are very lazy.