the minds team created a fork of elgg that uses cassandra and has other optimisation. they claimed they would 'soon' release the code to the web as open source... then when they got exposure in the mainstream they quietly stopped advertising that and never released it. they have changed minds quite a lot since then, so i don't know how much they still use elgg code.
yeah true , @urasoul the minds.com team made lots of customization on the elgg core in minds.com alpha version.but i still think they(minds team) still use elgg because the structure of links are still elgg-like...example, minds.com/login ..minds.com/register ..minds.com/groups/featured.but i think they customised elgg to their own taste.
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