[C++]Packet Loss

[Skywing]

[...]
Multi-threading is usually never a good idea, and for most of the things you'd do with it, there's alternative methods that are much better.
[...]

I would amend that to something like "multi-threading without carefully designing the program is usually never a good idea".

[Adron]

Multi-threading is usually never a good idea, and for most of the things you'd do with it, there's alternative methods that are much better.

Explain why multi-threading is usually never a good idea?

"Usually never" makes no sense. Should be "usually not" or "never". Multi-threading for something that doesn't involve both low latency operations and slow operations is usually not a good idea.