In my case, four things make for spelling errors.
1 Fat Fingers
2 An inability to type with more than two fingers.
3 Haste and forgetting to proof read before hitting SEND
4 A Wifi keyboard and mouse that are slow / fail to react. Pity I wrecked the hard wired ones!
As John Laurie would say "I'm doomed", as is anyone trying to read my posts.
Generally posts are good natured. Few get bitter and twisted, and possibly Neil removes posts that are getting too far outside the pale.
Good to know that we now have more folk prepared to watch over us, and protecting us from trolls, hackers and others with evil intent.
Howard