Some Webhosting companies have stopped using WHMCS

One of the consequences of google’s destroying competition, especially link sellers like th domain investor owning this website, is that the demand for webhosting has greatly reduced in the last few years
Google has become extremely efficient at tracking link buyers and penalizing them to increase the Google adwords profits, so very few are purchasing links for advertising.
With fewer customers for webhosting, webhosting companies are forced to reduce their webhosting expenses to the extent possible.
Earlier almost everyone was using WHMCS since link sellers could afford to pay more for webhosting, now most link sellers are broke or have diversified into other fields