As for not saying anything after his loan move. The way some were slagging him off on here during the talks, I wouldn't put it past some to have said things too his face whilst he was still here. Take all the s**t that was spoken about his injury and recovery, maybe he had problems and as a person couldn't find it in himself to thank fans that may have given him grief. This is purely speculation, but at least based on fan reactions that was seen here on this very forum.
I posted a quote from Chico's Twiiter account in which he was supporting Swansea in the diving row. He occasionally posts about the Swans and always pleasant, Other posters went on the offensive claiming he was not much of a player and had dragged the Swans to their lowest ebb and making us a laughing stock.
So players who have moved on (permanently or temporarily) get slagged off whether they make comments or not.
Good luck to Michu (and Chico), in his shoes I'd have done everything possible to leave the club where everything was falling apart. Fantastic in his first season and, despite serious injury, scoring a goal every 4th game he played last season he's been pilloried and attacked.
I'm not sure what motives some fans have for attacking him but it is pretty shameful.
However I was specifically referring to your assertion that he "was supporting Swansea in the diving row", not that he hasn't shown support or affection for us generally.

