It's useless noise - the parent's intention was clear

Just because a statement's meaning is clear doesn't make it easy to read. Even seemingly minor errors (such as mixing up "it's" with "its") disrupts the flow of reading.

That should be 'disrupt', not 'disrupts'. - PedantBear

Agreed.

Also, all this discussion about grammar is useless noise which should've been taken privately in order not to interrupt the flow of ideas that might improve the software.

So, please, in the future redirect grammar nitpicking efforts to a more appropriate place like StackExchange's English Language and Usage [1].

[1] http://english.stackexchange.com

There's a fine line between correction and pedantry.

Indeed, and we don't need an extra 30+ posts in each thread that don't add to the discussion but simply point spelling/grammar errors.