I used to feel this way, but I've had a change of heart.
Why shouldn't someone be able to express themselves by having bright pink text on a bright rainbow-unicorn background? It's not my cup of tea, but I bet it makes a bunch of people happy.
The best solution, imho, would be to have user-styles enabled by default (these could be as ridiculous as people wanted), and then having a standard site-wide mechanism for reverting to the standard style (this would also shut down any background music or videos).
Reddit does this, and it works well. They allows subreddits to be styled as the mods like and give the user an option to disable the custom styling globally. The Reddit Enhancement Suite takes it one step further and allows subreddit specific toggling of custom styles.
Why shouldn't someone be able to express themselves by having bright pink text on a bright rainbow-unicorn background? It's not my cup of tea, but I bet it makes a bunch of people happy.
The best solution, imho, would be to have user-styles enabled by default (these could be as ridiculous as people wanted), and then having a standard site-wide mechanism for reverting to the standard style (this would also shut down any background music or videos).