[Saikou]

Is it worse to let someone stay stupid or correct them?

[Silvinex]

If they're older than you or are of authority (parents, etc) let them be.
If they're someone like your friend you should correct them.

[Singularity]

Question everything. Even your elders.
But if they insist on being ignorant, it is bliss.

[Solar]

I usually like to correct someone if they're using improper grammar. Although, I try not to be a pain about it.

[Feat]

I think that it would be best if you were to correct them so that way they don't make the same mistake twice.

[Mod Mark]

It isn't bad to correct people at all, but people do take it as an offense. I remember someone corrected me about something a few years ago and it helped me out last year.

[Fallen]

There's no objective measure of what good or bad is.

[wander_n_wonder]

I think correcting them is better. However, there has to be a more polite way of doing that. If you correct them in a disrespectful way, that will end up to be being rude instead of being concerned or helping another person.

[Feat]

There's no objective measure of what good or bad is.

You still didn't answer the question. :omg:

[Fallen]

You still didn't answer the question. :omg:

Without an objective measure of what good or bad is, an answer would be irrelevant and would not matter.