I don't believe Chelsea are being "victimised". But I do think referees are wrong to brandish a yellow card for diving if they are not absolutely sure about what happened. If they are not sure, just wave play-on and ignore the incident, that seems far more sensible to me. If you don't see something, you can't make a decision one way or the other. The referee in the Fabregas incident would have been just as wrong awarding a penalty as he was ignoring the penalty appeals if he didn't see it. But why compound his inability to keep up with play by giving out a caution ?
The Torres incident mentioned above by Tip top was a disgrace. Torres was on the receiving end of an awful tackle that could have put him out of the game..he ended up receiving a second yellow card and being sent off. I will never forgive Clattenburg for that one. It wasn't just a genuine mistake, it was downright dishonest and vindictive.