Nice “refresh” but I guess there is much more under the hood than what meets the eye. Please allow me to add my “two cents”.
Inconsistent Header
Certain elements and section provide crucial orientation as they contain relative static elements like the logo, navigation, search etc… Therefore, if there is all of a sudden a change in design, it causes discomfort and the user must think if they are still at the right place (same website) or at least re-orientate in case they i.e. want to navigate back.
The header section completely changes when navigating into a post, causing this negative effect on the users orientation.
Sidebar Icon
To be honest, it’s the first time I noticed it as I thought, which kind of all learned from “mobile design” that the hamburger icon reveals the main navigation. Again, this makes me think “where is the main navigation”?
Furthermore, when outside of a post, the design doesn’t quite add up as the sidebar seems to take a higher place in the DOM hierarchy as the main navigation … which also wraps not quite nice.
Menu Ribbon
Why create a distinct page like categories which only contains a few elements? “Welcome” reminds me – no offense though – of the “good old days” when everyone greeted their visitors with a non-user, non-seo friendly welcome text. What I want to say is, it feels like a wasted opportunity.
Now it’s easy to complain so here is an idea. What users are (likely) most interested in is the content of the forum. Why not displaying the post with the most attention, the recent solutions, a hall of fame of forum editors choices or put Knime to it’s paces displaying a dashboard about the current state of the forum (sentiment, time to solution, time to resolution for bugs, announcements / updates resulting in peaks of interest by sparking new ideas)?
Adding to this, you have duplicated content … https://forum.knime.com/ vs. KNIME Community Forum
Both sites also have a unique canonical.
Search
The suggested Search Results are nice but only after the second return I pressed I am presented with the actual result page. There is no submit button and clicking on the magnifier icon does nothing.
On the result page it is not possible to refine my results i.e. by filtering for posts with with solutions. If I could make a recommendation here, FactFinder is a tremendously great tool. I still am in contact with these awesome guys and could connect you.
Visited Links
Gray color on gray background … difficult.
Spacing / White Space Distribution
Giving the text a bit more space by reducing the size of the icons column, reduces holes caused by word break and makes the table look more harmonic
Sticky Table Head
When scrolling down it’s hard to remember which column was Replies, Views and Activity.
Sort Replies, Views etc. asc/desc
Sorting cannot be undone to revert to the original "newest post first! state. It is also not clear, as there is no icon indicating sort-ability, that the grey text offers any functionality. I once a while i.e. check for recent posts without a reply to try to help the helpless.
Mobile Responsiveness
I think we all agree tables are a nightmare. Here is a quick tip / example for responsive html tables I introduced when working as a Product Owner of a former employer managing a global Magento platform. Not mentioning that without intention … if you need a fresh pair of eyes, ping me.
Stopping here as I am carrying my little son while replying Don’t let my feedback discourage you. I am certain lots of work has been put into this and the mentioned aspects are only some little dents at worst. Keep going!
Cheers
Mike