Same here. Well, actually not as bad. I’ve had three out of 90 new users reply to the bot, one of them completed the entire tutorial 
, one did a couple of steps and one reacted to one of the three bullet points but probably didn’t see that there was a tutorial waiting.
Of course users are entirely free to decide whether they want to do the tutorial or not. But what we don’t quite know at the moment is whether they are even aware of that choice. My feeling is that most are not and that there is room for making them more aware of it.
As a start, I have modified the first bullet point to mention the purpose of the bot (rather than “I’m just a robot” it now says something like “I’m a robot that can help you learn how to use this forum”). If that doesn’t increase the ratio of people who at least reply once, I might try to move the bookmark task into the first bullet point.
If the team is open for exploring alternative ways of starting the tutorial, my suggestion would be to make the first message extremely short. Something like “Hi, I’m a robot who can show you how to use this fodum. Would you like me to show you something?” If that doesn’t raise people’s curiosity then I’d give up and accept that most people are simply not interested.
The three bullet points would then come up in the second message and if the user doesn’t reply to the first one, there would be a special timeout message delivering the three bullet points.