One serious problem with most of OSS libraries is that, no project will tell you, what's the upsides and downside of the project, or the things the project coul

One serious problem with most of OSS libraries is that, no project will tell you, what's the upsides and downside of the project, or the things the project could do and couldn't do. So, most of the time, the user must spend serious efforts to evaluate if it's OK for them or not. Of course, this is hard and often not reasonable to do. But at least, let's do things based on some assumption.