Infrastructure Funding Plan
Infrastructure Funding Plan was proposed in January 2020 by Jiang Zhuoer via a Medium post.
Originally it called for 12.5% of the block rewards for the next 6 months to be devoted to infrastructure funding. The plan called for orphaning of blocks that did not comply with this rule.
The plan was very controversial and received many criticisms (see this link for a comprehensive archive) and was eventually rejected by the community in November 2020 network upgrade, which led to creation of Bitcoin ABC (coin).