That is probably by design with the way the contracts were done.
They all seemed to end around the same time within a year or so.
And since no album was in sight they all bailed. too bad Frank didnt quit, he is such a terrible drummer.

That is why Brian, Buckethed, and Robin all quit too. Because Axl was fucking around too much and never had a clear plan.  It because his management is shit. team Brazil has no clue what they are doing.

So when there was no new album or tour in site, it was time for Tommy, BBF and DJ to quit too because they had other things they could be doing was well.

Axl was basically playing greatest hits and a bunch of covers, he was barely playing any CD songs anymore, so why not just play those songs with the band that actually wrote them in Slash and Duff (and hopefully izzy for a few shows).

IF you think about it, if Axl really did his whole three album plan thing they should have all been out by now but we only got one.

then axl could have either written a 4th album or done this reunion thing. But instead Axl wasted tons of talent, especially with BH, Brain and Robin and had stuck with just a revolving door band playing covers. and now he is back to Axl Slash and Duff which is fine if he was only going to be playing GH set list anyways

IMO Axl loved bucketed and he was even trying to get him back up until the hammerstein shows but he had to settle for bumble foot.

I think Once Axl lost BH he stopped caring and just coasted because he knew that BBF was not the answer then he lost Robin and he really stopped caring and probably just wanted to get Duff and Slash back by that point.

good to see even more people coming back now

Axis deep voice is fake.  Just listen to him during his rants during shows, or even back in the day. 

this is his normal speaking voice

https://www.youtube.com/watch?v=sCKhrOyHzzM

https://www.youtube.com/watch?v=jPLWW390iqo

not the low voice he does in some interviews

his natural sining voice is the one he uses in patience's of the demo of don't cry.