I actually found a3camero's post informative! I am a native English speaker and I have never had any trouble differentiating between "effect" and "affect", but

I actually found a3camero's post informative! I am a native English speaker and I have never had any trouble differentiating between "effect" and "affect", but had never seen it written down as a rule. One of the fascinating things about language is that we "know" an awful lot of grammar rules without actually being able to explain how they work. Another example is the Spanish verbs "ser" and "estar", which both translate as "to be". As a (bilingual) native speaker of Spanish, I use them correctly, but it wasn't until I was in college and trying to help a friend with his Spanish class that I came across the rule that governs their use. I think it's very easy to mistake "informative" for pedantic. In this case, the OP made it clear that he was unsure whether the word was correct and a3camero offered not just a correction, but a succinct explanation. I wish people would correct my grammar like that more often.