Hey people make spelling and grammatical mistakes all the time. And for places like forums, creative writing, and layback settings who gives a shit. But when you are protesting a government you consider as overreaching and destructive to core values, you better damn well make sure that your message is not only comprehensible to those reading it, but that the language you use is representative of the symbol you are portraying for yourself and your group. So simple spelling mistakes and wacky conspiracy theories will work on internet blogs but not a protests for a large group and whatever people want to say about you thereof, then who came blame them. If you don't care enough to make sure you know how to spell, why should they care enough if your movement is worth something. That's my opinion on the matter.
As Mafoo said, not being able to spell doesn't make you stupid. In writing this, there were loads of words I didn't know how to spell and had to wait for spell checker. Sure I still got some wrong. However, it isn't going to change the opinion of people who are looking at someone who can't spell government right and really who can blame them. So yea not being able to spell isn't representative of their intellect, but it sure as hell will be representative of what people think of them.
As for the credibility of the signs, I could really care less. Both sides can go on a spiraling conspiracy story saying one side is trying to sabotage the other and it is really just silly. Take it at face value and try not to make any overarching truth claims. That being, not everyone can spell and while it doesn't make them stupid, it does make them lazy. And when you are trying to get a serious point across, laziness isn't necessarily something you want to portray.
