Prepending title text is less effective than marking the solution post and creates extra work to maintain forum consistency and Keep It Tidy
The original Manjaro forum used to need users to prepend [solved] to discussions, but that forum was closed in 2016
Use of the solution checkmark shows the specific post in the OP so a user does not have to read the whole thread to find a solution
If users include status:solved when searching Manjaro forum, results will only show discussions with marked solutions
Or prepend a DuckDuckGo search with – !manjf status:solved