Are you actually having problems with this limit? 50 is a "small" limit, but it is only the title, its not intended as the full and detailed question.
Certainly for bug reports, once you get into the details, even 300 characters is not going to give you enough space for all of the details for most reports.
Can you try using simpler, shorter questions when making topics? I read all new posts, so you don't have to rely on a very specific and detailed title to get support.
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