For example (in English) starting my name with an "F" instead of a "Ph" or replacing an "i" with a "y"?

The Naming Matters algorithm and phonetic similarity capability should automatically pick up these equivalent sounds.  However, if you have subscribed, you may wish to either to poke around with different spellings yourself as you may come up with new name ideas after reviewing the namespace that different spellings may turn up. 

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