“Please select a username could work if it went like this:
A row of alphanumeric drop-downs, like 12 of them with an option to add more by pressing the + button to the right. Then username gets chosen a single letter at a time. This concept would not be too popular for posting content in a forum or sending messages.
Wouldn't it be a better catch-all solution to use prepared statements, rather than trying to think of the ways in which you need to clean the text?
"Please select a username from this list" "Please select a comment from this list" would be a pretty terrible social network.
“Please select a username could work if it went like this: A row of alphanumeric drop-downs, like 12 of them with an option to add more by pressing the + button to the right. Then username gets chosen a single letter at a time. This concept would not be too popular for posting content in a forum or sending messages.