It is possible to avoid seeing and being drawn into discussion that might be distressing or deemed unworthy as topics of conversation for TDB.
You must create a new Activity Stream and set it as your default, it can be renamed to whatever you choose. In the following example I will create a new default stream to include all areas of the forums except off grid. In doing so, I will no longer see any posts from off grid when I click what is now Unread Content (I will edit it when prompted) to the right of topic titles.
From the header, select Activity> Topics> Content Type. From the drop down menu select Topics. From there, select every forum you wish to see in your new Activity Stream. I checked them all but off grid.
After making your selections, click Apply Changes.
You will be prompted to save your new stream and rename it as something other than Unread Content if you so choose.
You may make your new stream your default by clicking the check mark next to the title of your stream. Notice in this pic, before setting it as my default, Unread Content is still listed to the right...
If you choose to edit the title of your new stream to something other than Unread Content, It will be reflected after setting it as the default.
In this example, when I click my default stream, Everything but Off Grid, previously titled Unread Content, I only see what I have chosen to see.
I hope this helps those wish to not see or participate in certain areas of the forums. It does take a bit of doing to avoid them, but hopefully it will be worth it in the end.
I am happy to help in any way I can to facilitate this for those interested and have further questions.