Bromance as was said the images start to load the minute the page opens regardless of whether they are spoiled or not. So spolerig them does not enhance performance.
Also I am often on the forums on my phone more than anywhere else and maps load perfectly for me be it loading via 3G, 2G or my wifi.
Next point @ Lord Zepert.
As I have stated before as have others if you wish to only view particular maps I suggest you use this beautiful thing called a bookmark. Load only the maps you want without wasting your bandwidth by loading pictures you aren't going to look at and only see the maps you want to say.
As the meerkat would say 'simples'.