I wouldn't use a closed source C++ compilers either. But with C++ compilers, if one is abandoned, you can switch to another. With Circle, there is nothing els

I wouldn't use a closed source C++ compilers either. But with C++ compilers, if one is abandoned, you can switch to another. With Circle, there is nothing else. The best outcome the Circle author can hope for (and this is likely the purpose of the project) is that some company either buys it, or hires him to work on Circle full time. Circle benefits only one guy, it doesn't benefit the C++ community.