We answer every single feedback, as long as it's constructive. If you want LT to work better, we need specific example sentences.

Update: The sentence you later sent as an example is already detected on languagetool.org, the detection will soon be rolled out to all systems.

We automatically detect the language you write, and one short word is not enough for that.

No, we can not do "anything with it we want". We are a German company under the EU privacy laws, one of the strictest privacy laws in the world. Feel free to compare our privacy policy to that of other companies with similar products. If you still don't trust us, there's a section in the add-on description about to run your own LanguageTool server locally.