I didnt read alot of doujinshii at first cause I hadnt seen the original anime or serialization...so I still have those, hmmm sometimes if I see a pairing in an image upload that I like ill go and read up on the available....but re-reading is about it...I still have touho in my "to read" thats alot of stories lol...
But right now im gonna read Kyonne's suggestion, well re-read ;)
Well for me, it's quite the opposite. I read doujins first, and when I like it, that's when I look for the original to watch/read. And of course, my goggles are on upon watching/reading the original. Especially if the yuri element's just fan-based.