[yakubin]

I’m a non-native English speaker and I always appreciate corrections. Same is true for most non-native speakers I know personally. Most commonly I see this concern for possible offence at being corrected for bad English come from native English speakers, which is peculiar. (I don’t know if it’s true in this instance.)

[masukomi]

I'm a native speaker and I always appreciate corrections.

Getting upset about being corrected means you've got so much hubris as to think that you think you couldn't possibly be making any mistakes, or so much ego as to think you are above being corrected... or both.

To NOT correct people because we might "offend" them leads to a world of clueless idiots thinking they're infallible geniuses.... Crap. We're too late.

[wccrawford]

The only time I'm annoyed by corrections is when it's halting the conversation and stopping others from progressing towards the goal.

Since this forum has threaded conversations, someone can correct grammar at the same time that someone else is progressing the discussion, so I wouldn't have a problem with it here.

Well, okay, there's another time: If they're obviously being mean about it. But I think most people would dislike that, regardless of context.

[digging]

Anecdotally I have seen the same. It's easy for a native speaker to be offended when corrected because it's their first (and often only) language... they should be good at it. Language-learners tend to be quite open to correction in any language.