If the questions are something that have long, interesting debates and are stimulating, I’ll follow those for a long time. I like to read people’s opinions and thoughts on a variety of different things.
If it was a simple query that needed a factual response and it was answered in the first 32 posts, it doesn’t do me much good to follow it since it has already been answered.
And sometimes, I’ll just neglect to clean out my ‘Activity For You’ section and questions will pile up in there excessively. I try not to let it get too out of hand though.