Character count in text input fields

I tend to get a bit… wordy and nearly every time I write a reply or even just a post, I exceed the character limit (2048 for posts, 1024 for replies).

Trouble is that I don't know that I exceed the character limit until I attempt to post my writing.

I have been using https://wordcounter.net/character-count to help me rewrite my texts, but I think it would be nicer and more comfortable to have a real-time character counter visible in or near the text input fields. Would such a thing be very difficult to implement?

If it's easy to do, then please add it? It would be so helpful to know what my character count is before I hit the limit :D