Nitpick. I just created this super-duper brand new Consumer Issues and Protection Stack Exchange site proposal at Area 51:
While creating the new site, the prompt text itself ended with "for ", and so here's what I entered, arriving at exactly the 250 character limit:
everyday consumers who want to know about their rights, learn to deal with a product/service problem, understand common scams & rip-offs, avoid unsafe products, interpret guarantees/warranties, and make better buying decisions. No shopping questions!
Because the system ends up attaching "For " to the description, the entire description ends up being 254 characters. The logic to display the description underneath the proposal title on the home page seems to limit to the original 250 character limit (adjusted down to a word boundary), as opposed to the modified 254 characters, yielding the result above: a "savings" of 7 characters. This is unlikely to result in conserving screen real estate on any screen & browser configuration that I can imagine.
Since the input of the description has already been limited, how about the description be left as-is, or at least raise the display length limit to account for the "For " the system added?