The "open-source" section on the homepage is intended to show that some open-source projects (for example Jest https://facebook.github.io/jest/ were repl.it is embedded on the homepage) use us as a playground, for bug reports etc.
As for the logos they are either users or customers of the the Classroom product: https://repl.it/classroom
Google, for example, uses the Classroom product to spread programming education. I think they have a program where they send teachers to schools to teach computer science. And there teachers wanted to use Repl.it etc.
Thanks a lot for the great classroom product, and your support. It made my work a lot easier.
Also why is your comment kinda-greyed out?
In addition, their product can be used to help open-source projects with documentation, code running, etc.
When I read "Open Source" near the bottom, that's what I read (the we help you with your open source projects).
Also, any company is allowed to use names as long as they have an agreement with the company in place. Whether or not those companies use 1 of the company's products or all of them doesn't matter much. You see this a lot on Enterprise-oriented websites. Not all customers who leave case studies will use all the products.
As I understand it, this is no longer the case (as compared to say an open core company). They had some open source software. They abandoned it. They hope to open source their tech in the future, but currently they are closed source proprietary tech on top of the usual Linux, node, etc infrastructure.
They may be used by, or useful for open source projects, but currently they are not what most people would consider an open source company. I think that requires at least an open core, which to my understanding is not currently available.
It seems as if this project has gone from open source to a closed source service ? [ https://github.com/replit/jsrepl ]
Are Facebook, Google, and all the other name brands you are using to promote your product using your proprietary service, or the older open source stuff? If you have gone closed source, you should only be using names that are using the proprietary product.
It seems like putting "Open Source" on your front page in a big headline is a bit misleading if you are now a proprietary service. Labeling "Open Source" as a key feature seems disingenuous if you used to be open source but are no longer. If the case now is just that you use open source software, I don't think "Open Source" as headline is appropriate, as that is true of almost any company. The implication with listing "Open Source" as a headline is that your product is open source.