I think a lot of time is wasted trying to interpret comments with spelling/grammar problems. Every time I see something like 'should of' instead of 'should have

I think a lot of time is wasted trying to interpret comments with spelling/grammar problems. Every time I see something like 'should of' instead of 'should have', my brain trips out and I have to re-read the sentence. For a typical blog post, the amount of effort required to get it right is minuscule in comparison to the number of eyes which will (hopefully) read it. For a public relations employee, it's just a matter of professionalism.