I can only think of two 'real name' posters that I remember off the top of my head compared to the many monikered ones - real names are not memorable or distinctive.

My name was a googlewhack when I last checked.

The last Mudcatter I've met in person was Zen. He told me his real name once but I forgot it instantly. I have enough trouble remembering people's names at all that nobody is going to get me remembering two of them.

I assumed "Joan Crump" was more likely to be a pseudonym than "Ruth Archer", so when somebody said they were the same I made the wrong association. If "Ruth Archer" is a character in the soap, I've no idea what sort of character, so I don't know what statement she's making.

Thinking up an ingenious fake name for a forum usually comes across as insulting condescension, telling the audience they're stupid because they don't get the allusion. My reaction is that I'm not prima facie very interested in reading what a person with that attitude might have to say.