What's advantage of this service let say compare to bitbucket/gitlab/github ?
I prefer using github/bitbucket, auto backup to gitlab and my vps.
I know I'm safe with them.
As others have said, vpsboard's hsoting IS gitlab, in terms of the software. I don't know much about Bitbucket but I thought they mostly ran Mercurial. Github creeps me out. They are like Facebook for programmers, full of obnoxious user tracking, and a real-name-required, one-account-per-person registration policy. Companies can pay github to host private repos, but only personal accounts can check in code. I.e. the company you work for (if they host with Github) doesn't give you a github account the way they typically give you a gmail account. They instead add your personal account to a whitelist, so you can access the company repo. So Github knows the real name of everyone who can access the repos of any company they host, and they know the names of the companies and projects whose repos you can personally access. That basically means they track your employment or client list as you work with different companies over time, very valuable info that they are sure to try to monetize sooner or later. Do you think they will always keep that info private? How many times has Facebook or Google adversely changed their privacy policies (answer: plenty). Even if they try to keep the info private, their site uses Ruby on Rails (i.e. exploitville), so good luck with that. And with any company holding a lot of sensitive personal information, an eventual turn towards evil is generally a safe thing to bet on.
I'm very glad vpsboard is doing community code hosting, and I'll probably use it if I contribute any code here. For my own personal stuff, I've just been self-hosting plain git repos on low end VPS's, which doesn't give the nice "social" features but gives all the Git stuff that's worked for (e.g.) Linux kernel devs for these many years, so it is enough for most purposes. I hate social media anyways. Github used to call itself "social coding" but I guess that was too creepy even for hipster programmer culture.