I have this “disease” and there’s a very fine line between hoarding lots of stuff looking for patterns and the kind of high end collecting these folks do. Each class of collecting (hooding and high end collecting) has its extremes.
What these folks do that I haven’t done yet is curate their collections; my various collections sit in boxes in the basement and at some point when I’m not looking my wife may dispose of them. The sad part is, I might not notice for a while. Matchbooks, postcards, stamps, cigar boxes, coins, political cartoons, boarding pass stubs, embossed napkins, sea shells, pasta and a lot more. Ugh.
Another form of this is scrapbooking which tends to be about personal history but can be less focused as well. I tend to collect paper ephemera so my collections are probably a hybrid of objects and scrapbooking minus the curation and scrapbook.
In a way, blogging and reblogging is a type of collecting and curating, it’s just not objects that are being curated, it’s ideas or videos about ideas (like collecting and collectors).