I enjoy making signatures. I feel honored to be asked since mine aren't that great compared to the ones that most people make. However, making them takes time. I'm happy to make them for friends, because I know they actually appreciate and use them. I would get annoyed if a siggy I made was only used for a few days (unless there was a good reason, like a new addition, losing a pet, etc.)

I've noticed several people constantly changing/asking for sigs. Some people seem happy to make them tons, but I wouldn't be.