Not a fan myself – def worth mentioning them though as, like Mark eludes to, it completes the information. But i would stop short of putting the emphasis on the bonus. After all a signup bonus is a one-time offer. If someone is that interested in them, chances are they’ll move around and not stay loyal – pass-through traffic only.
Concentrate on the loyalty bonuses if you must “do” bonuses though…but again, i’d argue players more interested in the bonuses are not necessarily seasoned players and are less likely to appreciate the real benefits such as CS, cashout speeds etc.
Best to go for more interesting information, preferably unique, or as unique as possible anyway!
Cheers
Simmo!