[jacobsenscott]

CH excels at extremely high volume writes. You probably can't throw enough data at it.

[I_am_tiberius]

Sorry, meant writes in terms of update/delete.

[nasretdinov]

Many use cases can be addressed by using ReplacingMergeTree and such, so even when you need updates you can get them relatively cheaply

[hodgesrm]

There are many use cases that do not alter data. Observability is a canonical example.