The cause of this alleged harassment? A disagreement over the project's name. Being unable to use the Audacity trademark, now owned by Muse Group, cookiengineer ran a poll to find a new name for the fork. Those on 4chan who can never pass up an opportunity to influence the outcome of a poll took it into their hands to ensure Sneedacity, a reference to a
throwaway Simpsons gag in which a store is signposted "Sneed's Feed & Seed, formerly Chuck's", won.
When cookiengineer deleted the poll and picked Tenacity as the project's name instead, it didn't go over well. The initial response from involved 4chan members, who are by nature of the board anonymous, seemed entirely measured: forking the Audacity project themselves, and creating the Sneedacity of which they had felt robbed.