Yes and no. :) No, I’ve never used anything but SLB. Yes, it’s apparently always activated links, but it also used to have the ’Activate all image links in item content’ option. Being able to uncheck that option I could use SLB as I have until now: with lightboxing only on links I’ve manually specified as rel=”slb”. The automatic url-snooping thingy just doesn’t work for me, since I use lots of image links pointing to wiki pages of those images.

FWIW, it was easy to fix this for myself: I just cut process_links() so that it immediately returns with unprocessed $content.