Why Wikipedia sucks: Section "Wikipedia".
Best languages:
- latin
- esperanto. Other constructed languages: en.wikipedia.org/wiki/Wikipedia:List_of_constructed_languages_with_Wikipedias
The most important page of Wikipedia is undoubtedly: en.wikipedia.org/wiki/Wikipedia:Reliable_sources/Perennial_sources which lists the accepted and non accepted sources. Basically, the decision of what is true in this world.
Wikipedia is incredibly picky about copyright. E.g.: en.wikipedia.org/wiki/Wikipedia:Deletion_of_all_fair_use_images_of_living_people because "such portrait could be created". Yes, with a time machine, no problem! This does more harm than good... excessive!
Citing in Wikipedia is painful. Partly because of they have a billion different templates that you have to navigate. They should really have a system where you can easily reuse existing sources across articles! Section "How to use a single source multiple times in a Wikipedia article?"
- you don't get any/sufficient recognition for your contributions. The closest they have to upvotes and reputation is the incredibly obscure "thank" feature which is only visible to the receiver itself: en.wikipedia.org/wiki/Help:Notifications/Thanks
- deletionism is a tremendous problem on Wikipedia, for two main causes:The stuff you wrote can be deleted anytime by some random admin/opposing editor, examples at: Section "Deletionism on Wikipedia".
- tutorial-like subjectivity
- notability
This also possibly leads to Edit wars in the case of sub-page content (full page deletion is more clearly arbitrated). - Scope too limited, and politics defined. Everything has to sound encyclopedic and be notable enough. This basically excludes completely good tutorials.
- Insane impossible to use markup language-base talk pages instead of issue trackers?! Ridiculous!!! That change alone could make Wikipedia so much more amazing. Wikipedia could become a Stack Exchange killer by doing that alone + some basic reputation system. Some work on that is being done at: www.mediawiki.org/wiki/Extension:DiscussionTools, already in Beta as of 2022.
- Edit wars