So, do we recommend other companies to establish CoPs or guilds? The importance of implementing such parallel structures has been debated, and they do typically occupy the backseat in agile transformations and agile method implementations. However, Spotify experience shows that domain-specific, professional guilds is an important support for the squads and squad members. Guilds help new engineers get up to speed more quickly saving time for their colleagues. Guilds provide forums to tackle shared, emerging problems and opportunities with response times much shorter than individual experts would be able to provide. Besides, guilds' yearly events connect people across locations that would otherwise never meet. Therefore, we do recommend others consider cultivating participation culture in general and CoPs/guilds in particular.
Original source: Spotify Guilds