I thoroughly love what you've created and the direction you are going with Trailhead. I've recommended it. I've completed several modules. As a collector I was even planning on going through and getting all the badges.  

However, when I logged in today all my progress has disappeared. My username is still there, and the login still works, but everything else is wiped clean. 

I know that changes to the UI and to the modules are happening and will continue to happen. But this is the second time I've lost all my progress (the first being shortly after completing some modules for the free t-shirt offer).

Trailhead is still a great learning tool, and definitely useful now for that. But for those of us who are looking to take on the challenge of completing all the modules, should we wait until after Beta? I noticed a few other posts of lost data and progress and want to make sure I have the right expectations for the current state of the system. I'll still use it to learn new things (I enjoyed the salesforce1 module), but in the cases of the modules I already do know, I just won't go back to catch 'em all. 

Not yet at least. =)

Side idea: Twitch plays Trailhead! :D

I thoroughly love what you've created and the direction you are going with Trailhead. I've recommended it. I've completed several modules. As a collector I was even planning on going through and getting all the badges.  

However, when I logged in today all my progress has disappeared. My username is still there, and the login still works, but everything else is wiped clean. 

I know that changes to the UI and to the modules are happening and will continue to happen. But this is the second time I've lost all my progress (the first being shortly after completing some modules for the free t-shirt offer).

Trailhead is still a great learning tool, and definitely useful now for that. But for those of us who are looking to take on the challenge of completing all the modules, should we wait until after Beta? I noticed a few other posts of lost data and progress and want to make sure I have the right expectations for the current state of the system. I'll still use it to learn new things (I enjoyed the salesforce1 module), but in the cases of the modules I already do know, I just won't go back to catch 'em all. 

Not yet at least. =)

Side idea: Twitch plays Trailhead! :D