First, unless the defendant, anonymous Twitter user, resides in Canada (where there is a bilateral reciprocal
enforcement of foreign judgments treaty with the UK), the service out of the jurisdiction without prior leave of the court will require a letter of request / letters rogatory (particularly if he / she resides in the U.S.).
From laws and regulations to international conventions and bilateral
treaties that govern the recognition and
enforcement of foreign judgments in Romania, competent courts and distinction between recognition and
enforcement, as well as conditions for recognition and
enforcement, opposition and related procedures and timeframes, the guide provides a complete picture and constitutes a very useful material for any interested party.
Basically, you have to comply with everbody's copyright law, when you operate a web page, unless there's an issue with a strange law in a country that has no legal reach into the UK (no
treaty governing
enforcement of foreign judgments).