Please look at the link again and pay attention to the difference in regional dialects.

Absolutely baffling response. Your link specifically says that "learnt" is valid in some dialects. You quoted one of the times that it says that. I've said it. At least two other people have said it to you as well. Either you haven't read it or you are suffering from a crushing case of US-defaultism.

People, including me, have been rude to you because you started the conversation off by being rude and have continued being rude throughout the thread. The first comment you made was an attempt to mock someone for their spelling, which would be rude even if it was actually incorrect. Your replies to me have primarily been refusals to actually engage with anything I've said and, apparently, an equal refusal to properly read your own source.