Some links get removed over time. I have to send complaints for their replacement, but it’s done without any issues under warranty. The quality of some platforms leaves much to be desired. There is not much effect from crowd links, but they help avoid penalties for using SEO links. This is essentially their main purpose. If you expect to rise to the top solely thanks to crowd links, don’t expect miracles. I wish I could choose the platforms myself, but the service doesn’t allow that. Accepting cashless payments is convenient for working with client SEO. You can export detailed reports, and there are graphs for assessing promotion effectiveness, which is very handy.
