Hmmk, it's just that all those songs were under 30 seconds, while the other 25 that are recorded are above 30 seconds. All my God's Pee songs I listened to got recorded,which I listened after LDOH, and the remaining LDOH still haven't.
Ah I see the problem actually, I just tried it out myself and it does look like any song under 30 seconds doesn't get recored on there. That must have been added quite recently though I reckon as there's an album I've got on there where most of the songs are all about 10-20 seconds long and they've been added to my profile. Yeah looks like you are in a bit of hard luck there, that's pissed me off a bit too.
I'm pretty sure they had some way to make last.fm recognize tracks under thirty seconds in length, but I was never arsed about it because most of the stuff I listen to is closer to ten minutes. If you can't find it in the FAQs you can always post a question about it in the website support forum
This **** shows that popularity equals tastelessness.... I mean, some atmosphereless and emotionless wank Deathmetal band like Necrophagist that has released only two albums got 5 times as much plays as Deathmetal gods Immolation.... wtf?