Right now, we can use three custom off-topic reasons. This is what we have:
Theme or plugin recommendation requests are off-topic as they're rarely helpful to others. For more information, visit meta.
Programming questions not specific to WordPress are off-topic here, but can be asked on Stack Overflow.
Questions on problems with a specific host or provider are off-topic here. Please contact the appropriate support department instead.
We have to catch the old too localized here, so we need to change those pre-made reasons.
The last one is not common enough, or it can be grouped with other problems, for example.