Curiosity have just gotten on some of these promotion features on some casino and that's because I actually tried one and the end result which I got wasn't what they promised so I had to ask.
So here's what got me thinking, is it possible that some of these promotional offers by casino are just a mirage to get gamblers all hyped up and active in their casino because I saw one of the casino with a first time offer of about 300+ plus return on first time deposit plus a free spins of about 100 on slots game of any choice you opened up as first time play which to me looks tempting and watering to try out and actually made the deposit and all to see that's it a whole different setting that played out with discount as vouchers for playing on specific amount for the 300% first deposit and then the free spin was rather something else.
And of lately this particular promotion by the forum casino advertise here got me thinking too @playgram as they present 100% on first deposit of 30$ so wanted to know if it's limited to a particular slot or applies to all cause my usual slot game that favors me is fruit sweet bonanza 1000
Well, I guess it's safe to say that indeed, some of the bonuses that some casinos offer to players and new players alike is nothing but a mirage, which like you said, is a plot to get more news users signing up on the casino, and or old players becoming more active and playing games even when it's not really what they should be doing.
This is one of the ways or tricke some casino usually use to achieve their goal, and unfortunately, several of them end up very successful at this because most gamblers don't research and read, which is one of the ways to not fall victim to such deceptions or deceptive plots of the casino(s) involved.
Read reviews and find out what those who have attempted getting the bonus have to say about it, before you decided whether or not to also go for it.
And as for playgram, I know about this casino but I've not joined them yet, so I can't say if their new customer bonus is legit or not.