On one of my 400NL tables, I had a fairly weak regular, who I didn't mind playing at all. I had notes on him like: 'Bets weak hands weakly, strong hands strongly'. And that table broke down and we started to play HU. No big pots yet, I just tried a 2 barrel bluff in a small pot, and he called me down. Now I have Button and raise (I tried to put some pressure on him), he folded, sat out.
And before leaving typed in a chat box somthing like: 'I recommend you to go fxxx yourself'. And then he left somewhere.

Well, actually I am not sure if I should consider it an offence or a compliment?

Yah ... it's your typical brat who hasn't learned the basics of manners / emotional control throwing a temper tantrum.

He may have not meant it as a compliment ... but if I was at your table ... I'd have a good laugh with you about it. As I am now. What a goon. *lol*

/glad I'm not that guys cat
//don't forget to take more of his money later

Both, intended as an insult, should be viewed as compliment

That's funny...compliment for sure. Offensive would be "let's play more" or "don't leave!" or "reload plz"

What I find funny is when people who are somewhat regular call ME a FISH...I just laugh and don't say anything. What they're really saying is "all I know is how to play by this book I read and your advanced play is confusing me...stop confusing me and consequently taking my money at will!"