"All participants need to be aware, in the same way as if making a public statement in other forms of media, that any comments would be transmitted to a wider audience," added Burden.
"It is their responsibility to ensure only appropriate comments are used."
In the FA Cup match on 9 January, Ryan Giggs scored the game's only goal from a second-minute penalty awarded by Webb for Daniel Agger's challenge on Dimitar Berbatov.
Webb later sent off Steven Gerrard in the 32nd minute for a challenge on Michael Carrick. Liverpool manager Kenny Dalglish labelled the penalty decision
and also disagreed with the red card for his captain.
In addition to posting a link to the doctored picture of Webb, Babel wrote: "And they call him one of the best referees. That's a joke." He subsequently removed the link and wrote an apology on Twitter.
The former Ajax player has more than 180,000 Twitter users - 20,000 of which were gained in the last week - following
his updates and his messages
and the offending image was subsequently reproduced by some media outlets.
Babel later wrote on Twitter: "My apology if they take my posted picture seriously. This is just an emotional reaction after losing an important game. Sorry Howard Webb."
He then joked about spending a spell in "Twitter jail" and his previously prolific posts stopped on 9 January.
Babel's use of the site has also been questioned before. In a tweet in January 2010 the player made public his displeasure at being dropped by then Reds boss Rafael Benitez in a tweet in January 2010.
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