[deanhills]

As already said, OpenVZ available oses are almost already listed and they don't change at all. See my previous message.
Regarding KVM, the topic gets a bit complicated and I don't have much data to purpose a solution but as I have previously mentioned, there must be a OS list because if you don't pay for "Custom ISO Mount" service then you have to choose from a list given by provider.

If these lists are publicly available it is easy to create a scraper/crawler to automate and update the listing.

This post wasn't intended to create troubles and excessive work to @deanhills and the other staff. 

I don't know much about @Dynamo (If I am not wrong, he coded the Point system of this forum) but it should be possible to automatize the Holder list using a custom PHP announce/page that reads record from a very basic database table.

Thanks @LightDestory. Also thank you to @tryp4vps. @LightDestory, this is a great suggestion and I know the intention is to serve the Forum and provide an additional service to VPS Holders. I personally support it. Let's see what Dynamo thinks about this. I know Dynamo likes to work on projects like these over the summer - although that was when he still was a student. Not sure what his current project priority status is, except as far as I know his next project was to create admin panels for the VPSs that don't have admin panels. I think that project is probably outranking the current suggestion. But there are always a few ways of doing something, if Dynamo sees it as a viable project. We may consult you about this once he has time to work through the suggestion.