bifurcated email chains: why are they so bad and hated

I am trying to get our office on teams instead of wechat + dropbox but it's blood out of a stone stuff and I don't have the energy to see it through

My experience with Teams is that Microsoft developed in response to Slack to hand out to their enterprise Office 365 customers to stop them looking outside the garden. being an MS product they loaded it up with a lot of bloat linking it into the rest of the Office 365 ecosystem - and a bunch of stuff to work within a large enterprise. it seems like it is trying to push people do do all enterprise stuff within the Teams environment, which is actually quite good in a WFH and BYOD world but the UX really didn't work for me, very hard to navigate across different teams, workstreams etc. and I kept coming out of it to do not MS related tasks.

It's been over a year since I used it but the additional functionality seem to bog it down and the fact that Skype for Business is so terrible is a major failing.

Slack is good because it is lightweight and you have to consciously add the bloat in piece by piece, it's really focussed on the team chat thin - everywhere I have been that uses it well has almost eliminated internal email. It threads nicely (so pleased when the CEO of one of the orgs I'm working for finally worked out the thread button last night so not foolproof). The search seems better as well. Basically it is a chat app with a permanent record of everything discussed in the company, it threads and you can mute it/channels/people at will. Biggest challenge is getting people to get used to not using DMs or private channels unless strictly necessary. One of he big values seems to be using it as a very open environment. People can see what is going on in other work streams and involve themselves to the extent the want or need to. eg. I don't need to know what the site deployment team is up to even minute of the day, but if I want to know where something is up to in the construction process I can just dip into their channel and it's all there - site construction photos, discussions about delivery tines, delays etc. I can quickly read it and decide whether I even need to bother someone before doing it.

TBF though the google team chat that comes with google apps is just fine, like an even lighter slack, and it comes with the google apps ecosystem so there's a good argument for using that.