:No problem, and you were probably right to bring it up. Sometimes in internet law, you go round in circles until you disappear up your own tailpipe. For instance, while it is doubtful that posting a libel would be pursueable under English law - don't it's against wikipedia policy, since they don't want to make new law - reposting that libel on servers hosted in the UK clearly would. 
 :Generally, webmasters like to know when pages link to their pages, so that when they move them (for some reorganisation), they can link to the new page. Generally they like linking, as it moves their site up the Google ratings (although wiki uses 'nofollow' tags, so there's no benefit to them from here). 
 :Yes, they were the stamping grounds of my youth - a time when a good day out was riding the Woolwich ferry all day... I try to add some quality to articles, sometimes I may succeed. If I get time sometime soon I will try to take Greenwich to GA - you're more than welcome to add some of your local knowledge. (Ah, Greenwich - gathering chestnuts in the park...). Take care