I've got friends asking me about the QR code on my post a few weeks ago. Nope, you did not miss out on any airdrops yet. It's an invite to join their WeChat and Telegram group. I've joined a few groups on Telegram such as Ink Labs and Cube Chain Community, both having hundreds of users joining each day, easily 10k users in a group! I found the mute button particularly useful in such instances.
Unfortunately, the WeChat QR code has expired (didn't know these things had an expiry date) but here's the one for Telegram - LEDGIT Official. There has been a lot of news regarding the token and the group really helps me to keep abreast of things.
ICO is ending real soon. Don't say I bojio! ;) I've also read that they'll be announcing the trading platform real soon. Looking forward!
Disclaimer: Purely for entertainment purposes only. I’m not a certified financial planner/investor. Just a regular dude living in the 21st century. :P