From the Steam Partners F.A.Q:
Sometimes Devs or Publishers would use the Steam community forums to promote their non Steam version of the same game. This also Prevents Devs from linking to +18 patches of certain VN games on Steam and ofcourse due to this there will no console version or EGS version promotion allowed by Valve any further.
For your Info. Steam community is just not the forums, its actually a hub of links that are the following...
Source: https://partner.steamgames.com/doc/features/community
Q: Can I use the Steam community to let customers know of non-Steam versions of my game?
A: In the game you ship via Steam, and in communications on Steam, you may only promote the Steam version and its availability via Steam, and not other distribution outlets. This applies both to full versions of your game and to content patches that change the existing version.
Sometimes Devs or Publishers would use the Steam community forums to promote their non Steam version of the same game. This also Prevents Devs from linking to +18 patches of certain VN games on Steam and ofcourse due to this there will no console version or EGS version promotion allowed by Valve any further.
For your Info. Steam community is just not the forums, its actually a hub of links that are the following...
- Discussions
- Screenshots
- Artwork
- Broadcasting
- Videos
- Workshop
- News
- Guides
- Reviews
Source: https://partner.steamgames.com/doc/features/community