Go+ is a successor to Golang, optimised for data science

I think they would need to list the advantages over Go on their homepage.

They can assume that most people visiting that page are already familiar with Go. So simply having "compatible with Go" as a feature isn't really a feature for this audience, I mean Go is already compatible with Go.

Looking at the documentation gives a better view (https://github.com/goplus/gop/blob/main/doc/docs.md). Interestingly, the fork/superset/alternatives to Go (Go+, Vlang, Odin) address some similar areas. In each case, however, their success is arguably going to be about how much momentum and contributors they can get behind them.

Go+ vs. Go (https://github.com/goplus/gop/blob/main/doc/goplus-vs-go.md), highlights an interesting perspective of bringing in technical non-programmers, where some secondary aspect of their focus or job requires or is enhanced by programming. A language that's easier to learn and then use, is going to be more attractive to a wider audience.

I like the approach, sadly it is a set of features that will never get back to Go.

I‘ll be waiting for Go++

You can’t just go stealing another programming language’s name like that… oh wait

Go with classes.