I've recently come across the number blanking issue (and don't want to have to go and make all my number columns back to text). What I have discussed is that if the number value field is changed and it is blank then can I default it to 0. So it becomes an issue when the user enters a number but then goes back edits it and "clears" it -> clicks save then the number will just remain.
Looking at using the OnChange for the text box to do something like this
If(IsBlank(txtStandbyDays),txtStandbyDays.Text=0)
But it doesn't work. I guess I could create a context value for each field but there are ALOT of fields and do it that way?
Or just put a disclaimer on each numeric field..