I'm often guilty of missing mistakes in my own posts, but as a PSA: please proofread your posts, especially if using prediction on a phone.
You can edit your post if you do so soon after posting, and sometimes the meaning isn't lost (stale matches -> stalemates) but other times it (subjectively) is. For example I don't know what "rightful" should be here.
I always thought it would be a good idea to have a suggest spelling improvements on social media & forums. Gives a low-key way of improving things without wasting comment space and potentially saving embarrassment. But I’m sure it needs a good ux or otherwise will be abused
I agree. Stack overflow has/had something like this where users with at least N karma could make edits to others' posts. I believe that was done with an aim like what you've described, though of course it is also subject to some abuse.
ESL commenters are perfectly capable of learning to avoid and correct mistakes. In face, in written language some kinds of errors are more common in native speakers in my experience.