I'm sorry that you've had this unpleasant experience, but please don't take it personally.

As with most online communities, italki attracts a certain proportion of sad, sick people. Unfortunately you have just met one of them.

Just look at this guy's profile:

He hasn't taken any lessons, asked any questions, written any entries or taken part in any language-related activities here. He appears to have no foreign language ability at all and no interest in language learning. The only thing he has has done  here is collect a few dozen 'friends' - all of them pretty young women from different countries. He clearly isn't here for a good reason.

What should you do? Ignore him, of course.

I am sorry for your bad experience. But as a general rule I would say that posting a link to the profile of this person isn’t very elegant either. Sounds like a tactic that police informers use. Sorry, I didn’t find a translation for the French word “dénonciation “ . Yes we can have bad experiences on the net. It happened also to me that another italki member started to insult me because I didn’t want to make a language exchange with him. I just stopped reading his messages. I didn’t publicize his profile. Eventually he left italki. Theoretically we were a good match, I was learning his language and he was learning mine. But I just didn’t have time.