It would be helpfull if words could be flagged 'good chance it's a mistake'.
Example: in Dutch, there are words like 'kunne', which is rarely used, but correct.
Then there is the word 'kunnen', which is correct too, but often misspelled as 'kunne' by accidentally dropping the last n.
A warning level for this (different color underlining e.g.) would be nice.
A flag like /WARN could achieve this.