I think finding some issues and claiming its scam are totally different stuff. I mean even if you are fortunejack of course there could be some bugs, glitches, some problems etc etc, you can find an issue in any place, for example primedice is the oldest and most known one out there and they still have bug bounty on their games at stake and some find some bugs there as well. Just because there are "issues" in the website doesn't mean its automatically a scam.

Fortunejack probably has a bit of issues time to time, developer problems and with enough debugging it could be solved, aside from that I do not think they are scam at all, fortunejack is one of the most trusted and loved places on earth and they are already making insane amount of profit already so they do not need a reason to scam people anyway.