for the OP subject. Brew whatever you want to brew at all times. It's your time, money and more importantly beer. I consider an american light lager to be one of the hardest styles to brew. Not only is it impossible to mask off flavors from even a slightly off fermentation, mash, ingrediants etc..., it also should be crystal clear, making it hard to brew. I wish every homebrewer attempted it once if only to be a study into their own brewing process.
as for the derailment of the post on GMO etc...
I am not mr. health nut. But the new types of GMO plants coming are getting a bit ridiculous. Farmers have been using hybrids for longer than i can speculate, however there is a long way between crossing two plants and outright modifying a plant in a lab. Things like bt-corn are in my opinion going over the line. These are corn plants that produce their own insecticide. They've also done this to potatoes and cotton. There are already 2 results happening because of these modifications. 1, beneficial insects, ie predatory insects that eat pests, and insects that pollinate plants are being effected in a negative way. 2.The insects that are targeted by the plants are already becoming resistant so the farmers are again forced to have the bt plants as well as spray other insecticides. I think the biggest risk is the first issue. If you get rid of the pollinating insects (including bees) you risk collapsing the entire agriculture industry. They are already shipping bees via large semi sized bee trucks that travel the country based on the season of the area because there are too few local bees to pollinate effectively. Insecticides are not the only cause of bee population lessening, but it's not helping either.
A secondary issue with GMO is that farms are now specialized in one crop. It used to be that farmers would rotate their fields because different plants use different nutrients in the soil, and when those plants die and return to the soil they replenish nutrients that other crops need. This also helps to keep harmful insects in check to some extent. Now because it's easier to just kill off the insects and pump the ground full of fertilizer farmers have a cost incentive to use GMO. I'm not against fertilizing and coming from a farm community not against farmers. But it does help to understand that there are some negative consequences to the current GMO coming out.
I'm not telling anybody to outright avoid GMO, but it's good to understand what's going on in the background and make your own decisions about it.