This is somewhat old news at this point, but you digging it up and being happy about it says a lot more about you than it does them for getting sued.  When you are successful, people get jealous.  That's just the way it goes.  That's why people say if nobody is hating on you or spreading lies about you, it's probably because you aren't doing anything worthwhile.  With the success that the team at Stake has had, it isn't surprising that people are coming to try and get a payday from them.  Most of the time these lawsuits are filed in the hopes of securing a settlement, but in this case, according to what you've provided, it sounds like this will be dismissed entirely.