Ah, it looks like Jasper left the note on your talkpage, 2 years ago. You should be fine, given that you're not a spambot!
I'm not sure what error you're encountering, exactly, but it might just be "warning" you, and not actually "stopping" you. Please try to save the edit twice. If that doesn't work (i.e. if the filter is actually "stopping" you from saving the edit), come back here and paste what you'd like added, without the "http" s, and I'll add it for you.
I would also strongly recommend removing the direct email link, that you've currently got there (and at English Wikipedia). You've already got it in your Special:Preferences, hence any editor will be able to use the "Email this user" link in the sidebar, to contact you (that link only appears when editors have a verified email address in their preferences). Otherwise, if you leave it as plaintext, spammers are likely to eventually find the plaintext version and add it to their lists.
Hope that helps.
p.s. this new type of discussion page (an extension named Flow) doesn't require signatures. Let me know if you have any feedback about it - it's part of what I'm working on improving. :-)
I was very confused on the editing format, yes. Very sorry to tell you, but my feedback is that I absolutely hate it. It is confusing, awkward, and next-to-impossible for me to use, sorry :-(. It makes it extremely difficult to copy and paste text from outside sources/wikis and jars my thinking since I like to edit everything in plaintext. ~~~~
I didn't see the date on Jasper's comment. The antispambot must still be preventing users from adding homepage links then. I just tried it again, and it worked this time, no warning, thanks. My e-mail address is already public as plaintext on ICANN WHOIS to spammers so it doesn't really matter where I post it online. Also, I like to have the e-mail link public so if a user is having technical problems or doesn't have a Wikimedia account, they can still e-mail me without needing the MediaWiki interface. ~~~~
I should add that it is aggravating enough that if it was implemented on all Wikimedia sites, I probably would avoid posting on talkpages altogether.... It should be an option on/off in preferences, with default option off. The beauty of wikimarkup is that it is very easy to archive and crosspost between wikis and it improves the information flow of hypertext (and thus new avenues of thought), whereas rich text defeats that and undermines the purpose of wikitext. ~~~~
If you click the [[]] icon in the bottom corner of the text box, it will change into wikimarkup mode, for us people who prefer that. :-) It will also remember the last edit-mode (wikimarkup, or visual editor) that you used to change any text.
Being able to cross-post topics between pages (currently possible with transclusion, but awkwardly), and between wikis (not possible with standard wiki pages), is part of the plan.
There are many things that need to be added/improved/tweaked, and it will hopefully change a lot over time.
Hope that helps, and thanks again.
