I had forgotten that Subscribe to comments was even a plug-in.
I’ve discovered some interesting sites via CommentLuv (including 40Tech) and luckily haven’t found much spam. One note, though – for some reason, when I plug in my domain’s address lately, it can’t find the feed. I have to type in the feed’s address at feedburner to get it to work. Not sure what the deal is, because when I test on my site, it works fine.
I do like AdRotate – thanks for pointing it out. If they’d add functionality to activate/deactivate ads/groups based on certain factors (search traffic vs. regular visitors, etc), it would be perfect. I haven’t found a way to get it to play nicely with Who Sees Ads to combine the functionality … but I haven’t spent a ton of time work on it, either. Currently, I’m using it to randomize a few Amazon ads.