(not) Bug in the desert map

In the desert map, the game is telling me (not a subscriber) to play levels that require subscriber features, it isn’t preventing me from continuing, but it is quite irritating.

I’m afraid that isn’t exactly a bug. I know what you mean, I can see how it could be annoying but it also makes it more tempting for people to get premium which is one of the main incomes (if not the biggest) of codecombat.
If you would like to send a complaint you could email team@codecombat.com.

they already nag me about becoming a “master coder” with premium every time I try to play the game. if I don’t want a product than it shouldn’t be shoved into my face. I understand that it is their only source of income, but this is just annoying.

Again, I understand your annoyance, but there’s nothing I can do. I’m not a staff member.
Danny