If someone wants to use Twitter to have purely technical/academic related discussions but gets attacked periodically by a few people strangely fascinated by the

If someone wants to use Twitter to have purely technical/academic related discussions but gets attacked periodically by a few people strangely fascinated by the British royal family, I don’t think they need to justify wanting a little respite. Does that make it an echo chamber? Maybe depending on someone’s definition it does, but then I would argue an echo chamber isn’t always bad and can sometimes be good.