Benefits of implementing an interface

Question

what are the benefits of implementing an interface in C# 3.5 ?

Answer 1

If you work in a huge, commercial software house - you MIGHT want to consider the judicial use of Interfaces. Otherwise, you should stay away from them. Same for multi-threading. If I see one more script-kiddie app that spawns 20 threads to write "Hello World" I'm gonna freak. Multi-threading should be completely reserved for apps that require it, usually in a multi-processing environment. 90% of the time it causes more harm than good. And don't bother with the thread highjack / off-topic comments. I don't care. I've been doing this longer than most of you have been alive. Rank has its privileges.