Lending of those assets? Check.
Again, you seem to have a different definition than everyone else of what constitutes "lending". If individuals at MtGox were appropriating customer deposits, that's not a lending activity, that's a criminal activity. And it's still criminal even if they returned the BTC with interest.
Furthermore, at no time did MtGox sell or offer for sale any BTC loan products. If you're not making loans, you're not a bank by any generally accepted definition.
Sure sounds like it meets at least one public definition of fractional reserve banking.
...only if one subscribes to your ridiculous position that appropriating customer deposits is equivalent to lending. But please, continue making up new definitions for common words...it's quite entertaining. I'm sure you're a real hit at cocktail parties.