If Iran wanted to set the cat among the pigeons, it would not only discuss Export Land at the UN, but say what happened in 1988 with OPEC reported reserves.
They could destroy the world with one carefully crafted announcement on that subject more thoroughly than they could with a nuke test - and for free. The fact that they have not done so suggests they are not in fact evil.
I view the "unhelpful" subsidy of domestic oil consumption by oil exporters a little bit differently to most observers, however. I believe that historically, subsidised fuel has been an enabler of exports. This sounds like a contradiction until you consider the condition of most of the countries in question. For an authoritarian state with a large poor population, entertaining highly visible energy exports and at the same time forcing global market pricing on the domestic market would be suicide. While inefficient domestic consumption would be held in check, the eventual effect on exports would be counterproductive - a reduction or cessation through unrest or political instability.
I view the historical role of subsidised fuel as governments fulfilling their part of an informal understanding with their subjects, namely that while revolt will have harsh consequences, there are other reasons of rational self-interest to acquiesce. Subsidised fuel is appeasement. It is a pragmatic response to local conditions, and it works. However much proponents of free markets dislike it, this status quo has been maintained for a long time to their benefit. Pragmatic thinkers understand that the world contains too many inconvenient facts for a truly free market. Simply put, the first revolution would kill it.
I take care to say "historical role" because it is clear this is breaking down. The benefits of such appeasement are not without limit. Exponential growth starting from a low base eventually reaches titanic scales. Subsidised fuel has encouraged consumption in oil exporting nations, starting from a low base. We know what happens eventually, when supply fails to keep pace or descends to meet it. That's what we call the Export Land Effect today.
In summary, subsidised fuel might be unfortunate now, but the past would have been less pleasant without it. Credit where it is due.