Help noun explanation

First of all, to correct it, it is irrigation, not canned water. Irrigation means that someone asks some boring questions or others ask questions, but you answer your questions with a teasing attitude. For example, I use the answer "It's a beautiful day today", and that is irrigation. Such a position is called Shuigang. There are usually irrigation areas on the forum.

Stress test: I'm not sure, but I think it should refer to the carrying capacity of network servers, especially games, similar to internal testing and public testing.