do links expire

So anyway i found a blogger blog using a few of my articles as their own so left a comment saying 'by all means use the articles but a least leave a link back to my site' they sent one back been all bitchy saying "This is the internet and nothing is safe and anyway i did link back but you may have noticed this Blog hasn't been updated for awhile now and when that happens links expire to stop bad links from happening"

Just wanted to know if this is true, or is this person chatting out their arse? by the way when the blog owner stated that the blog hadn't been updated for a while she meant since April!! that's right a massive month ago, and the posts of mine they used they posted in February.

Cheers everyone.

Sounds like they chatting shit - Blogspot can be fraped anyway.. drop them a few 10k comments shit