I order vapetrik for the first time a couple weeks ago. Good news--NO more food coloring. It's stated on his site, and the four flavors I got were definitely "natural" colors (various shades of yellow to golden tan). I'm waiting for the Sik as .... and Khlorine to improve (wow, their kinda weird right now). AWOL is very intense, my "special" vape when I'm feeling it. Joe Kuhr is my favorite. It has the complexity that keeps me going back to Boba's Bounty, but a very different experience.
As far as gunking up coils, well I guess it depends on your frame of reference. Boba's is probably the biggest coil ruining liquid I've come across, but totally worth it. And I don't mind recoiling every other day (or every day, lol). Just a thought, if it was the coloring additives, it's not used anymore (I'm sure by customer complaint...er, request).