Huh? vi does not have any plugins; only vim. vi is even more bare-bones than vim, lacking a lot of features (macro recording and text objects being the ones I miss). It is extremely common to find vi pre-installed on countless servers, however, making it extremely convenient if you're an expert with it.
What's amusing to me is how many people don't know vi very well and use plugins in vim that vi can handle as well or better through macros, ex scripts or external commands.
This bothers me. People should just call it vim when they mean vim. I suspect most people here haven't actually touched Joy's vi or its closest derivative, nvi.
I don't know where this practice comes from but it feels exactly the same as when people say Unix when they are very obviously talking about GNU/Linux.
It probably comes from the fact that most people alias vi to vim. And from the fact that when you type vi, you're probably not getting vi, but vim in full compatibility mode.
These actions make the two interchangeable in people's minds.
What's amusing to me is how many people don't know vi very well and use plugins in vim that vi can handle as well or better through macros, ex scripts or external commands.