Twitter DM is bad. Messages don't appear "immediately" so you often end up with overlapping streams of conversation. The Android app's DM interface is so slow (it freezes for a long half-second every other word) that it's almost impossible to use (thankfully the mobile site works well enough). The best tactic if you're forced to use Twitter DM for an extended or even semi-real-time conversation is to move to a different IM client.

I agree with you.

Do you think Google has a moral responsibility to provide us with tools and time to make the transition?

And, how good do the tools have to be? Just a text dump is okay, or should you be able to give it your credentials and it can do the transfer? And then who decides how many services it should make easy?

Are we being responsible now by not thinking about it?

A lot of my friends that are friends with me on FB for some reason prefer DMing me on Instagram... Such a weird trend, but it's honestly a thing amongst our group. Either that or Snapchat group chats.

Same here, weirdly enough. In order of most messages exchanged per service, in my friend circles it goes:

1. WhatsApp

2. GroupMe

3. Instagram DM

4. SMS

5. FB Messenger

6. Wickr