A polite fuck off is still a fuck off, isn't if? Uncalled for and you are certainly showing colours. I won't get into that kind of discussion, but it's not nice.
They have been rivals, but they never meant anything until they decided to take Roman's money and became the most hated of clubs. They were a club that didn't mean much to Spurs fans anyknow, a top Division 2 or lower Division 1 club sometimes. That is a discussion for another day though.
You ask proper football fans here in Germany they often spit when they talk about Chelsea about what they hate about the Premier League. N'Koudou evidently has no clue what it's all about.
Comparing N'Koudou to the players mentioned shows that you don't understand the difference. I'm sorry if you are offended by that. There is a difference. Players CONTRACTED to a club, playing for a club NEEDS to wear that shirt. Pretty damn clear. N'Koudou is a current Spurs player, and thought it was a good idea to wear the shirt of them. What he does after he leaves Spurs, I don't care, but as long as he is ours, he should show some respect, something he hasn't.