Some years ago I downloaded thousands of texts from the US military global language support system (gloss.dliflc.edu/Default.aspx) GLOSS site which hosts thousands of recordings and texts in various languages sorted by topic and level. There are a few gigabytes of files all in the public domain and would make an excellent resource for lingq learners.
There is a huge collection of audio and texts (all translated into English) for Chinese, Russian, Spanish. There are smaller collections for Portuguese, Japanese and French.
Also, there is quite a bit for Indonesian and Hindi/Urdu. These texts and audio could be the start of adding these two important languages to Lingq.
I downloaded these texts about 9 years ago and when I last looked a number of languages and texts had really grown. I could also include the method with which I downloaded all the current files so that anyone willing to could download the thousands of new text to put up on lingq.
If anyone would like to work on this project let me know. You’ll need to think of a convenient way for me to send large files to you over the net.