I do not think it's strange at all. It's very hard to say thanks when one has been frustrated repeatedly and immensely for service for which one paid processing fees (despite being a tax payer) and for which USCIS promised a certain processing time and never honored its word on it.sertra2002 said:Congratulations on your approval !!
Just a a side note. It is indeed strange that not even one person after approval says thank you USCIS ! After all it is they who gave the approval !