That's roughly 40 chars ?
People coming from some regions easily have 20 to 30 chars for the family name alone [1]. That's more or less the length of our test string if the add the given name(s).
If the issue only appeared on all W's I'd guess you could set the bug as minor and discuss if it's worth fixing. If it costs an incredible amount of time to fix it, the problem relies more on defining priorities than on having too much granularity on the testing side.
To go back on your parent post, I'd say validating funky emails is of the same level. The test team should bring up the edge cases, fixing them or not is a matter of priorities.
This is the source of 80% of all "bugs" I've fixed over the years.
Another personal favorite: If you enter WWWWWWWWWWWWWWWWWWWW W WWWWWWWWWWWWWWWW for name, it messes up the layout on the display screen.