I'd say you can test with regular expressions if the string contains a minimum of characters, and the characters come in an order that is less likely to be junk.
For example, there is no one letter domain. Two letters are the minimum. And for names, I like to check for a "space" (you know first name and last name). And both parts of a name should have two character minimum.
There are really countless things to do. However - deleting the submission could be the fastest.
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And for names, I like to check for a "space" (you know first name and last name). And both parts of a name should have two character minimum.
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