Online casinos can shuffle cards without having to use automated shuffling machines and set the cut card earlier[0], which makes it less profitable/ harder/ worthwhile to Card Count.
There's an interesting article on how security detect card counting[0]. My take is that it's not a science, instead the security/ pit boss' who spend significant time watching players would develop a 'feeling'.
+1 on Trello. I'm a Scrum Master and we use it in our current team (~10 devs). I miss the reporting JIRA has tbh, but we get along just fine using workarounds (estimating in cards, etc).