Airtable automatically creates a Sum for Number, Currency and Autonumber fields, even though it sometimes doesn’t provide any useful information. For some numeric info, I’ve used a “Single line text” field to avoid having to change a useless Summary in several Views.
How about if numeric fields had an option for a “default” summary, with “None” as one of the options? Any new View with that field would display the default summary.
This could also be useful for non-numeric fields, e.g. it would sometimes be nice to have an “Empty” or “Filled” summary for all Views that have a particular field.