You have to have a thick skin to be a footballer - you're going to take punishment and people moaning at you, but you've got to shake it off and not rise to it. Tom's just a bit mouthy on Twitter and it'll probably get him into a few scrapes. He's doing nothing wrong as a person in defending himself, but as a professional footballer you can't be seen to be returning fire as it won't get taken well. That's one of the trade-offs of his job.
The fact is, the celebration makes it obvious he's been pissed off with elements of the fanbase, and that reinforces a wedge between "us", the fans and "them", the players. He shouldn't have to take shit off fans, but he's partly recompensed for that by being able to play football for a Championship club and the money that goes with it. But he can't be seen to fight back (you can debate how fair that is to him as a man, but keeping schtum is sometimes just the right thing to do professionally).
Just my personal advice.