Retro-activity

Sometimes I don't quite follow the quest system. I got something popping up today for visiting my own profile. 
Which, not to be self centered, I do a couple times a day. 
Then, I got one for going to the How to build a bomb page, which I've also done recently. 
ditto for the podcast page. 
And, if I'm guess right, I'll get one for posting on my blog. 
Which I already did once today. 
 
Weird.