I too was linked by a webcomic, but not XKDC or whatever it's called. It was Unshelved, a comic about a library, who reported in their news that QC was about to explore the world of libraries back in 691:
http://www.questionablecontent.net/view.php?comic=691I thought the comic was funny, and I liked how there were already 691 as there was a lot for me to read and it proved the artist was reliable. So I decided to read it.
Now, I have a deep, abiding hatred for reading things out of order and spoilers (my mother now knows better than to give me a second book in a series of connected books which all stand alone), so I went straight back to number one. Then I went back to 691 and back to 1 a few times because I honestly thought I'd clicked a different link to another comic, the art was so different. But once I started reading it, that was it, I was hooked.
But what really surprised me was eight months later I turned my mother into a QC fan without even trying. She had a similar process to the opening poster. When I visited, she just read the daily one over my shoulder for eight months. I did notice after a while she was stopping whatever she was doing in another room to come and see the days QC with me, which I thought a little strange. I wish I remembered which ones they were now. One was Hannelore thinking her new medication which had made her very sleepy and forgetful was great because she wasn't mortified at being in public in her underwear because Mum told me her mother had had to reject a medication because it made her forgetful and not caring like Hannelore, which is not something you can do married to a sheep farmer in shearing season.
Then one morning I got an email from Mum which saying she was reading the QC archives, my didn't the art change, my didn't Jeph get bored of Sarah quickly. That same day, five hours later, she sent me an email titled: "WAAAAAA!" with a one sentence message: "I have reached the end of Questionable Content!" And not long after that my Dad read them all because he feels if both of us like something it is probably good. He decided we were right.
We all still read them daily and enjoy them. We sent each other a lot of emails during the Faye Gets Fired and Nearly Dies arc. My Dad's a psychologist and had a few things to say about addiction, and my Mother was using her encyclopedic knowledge of the archives to point out previous times friends have tried to address Faye's drinking problem, and how Faye has never responded to someone saying she should stop drinking either for the night or for her life by agreeing. The opposite, she normally takes it as a sign she should drink more.