And even though I knew what was coming in regard to Chloe's forgetting, I found it really sad. Personally I think the years Chloe knew about Clark's secret were the best years Smallville had, especially seasons five and six. And I also like the time in season four where she knew and he didn't knew she knew.
Now this time is most likely over. I don't think that she'll get it again. And that makes me really sad.
One thing though:
I always try to embed myself into a story, I try to watch it "from inside", as if it were real. I try to forget that it's just a TV show. And from that POV I am wondering how Chloe's memory looks like now. All the adventures she's had with Clark, how does she remember them and supress the memories about his abilities.