I know using capital letters when posting, is the height of bad manners, however at least you can see the bloody letters.
Most of the time i can't see half the words written in lower case letters; also when i reply to postings i often end up with grammatical and punctuation errors !
I am sure this is down to not being able to see what iv'e written as much as dyslexia and Irlens syndrome.
This occurred to me after reading a posting today, that was in capital letters. The meanings of the post were irrelevant , but it meant i had no problem reading it.