well said Coelacanth.
Her older lyrics were very well written. DAI + ayu did create lots of popular songs back then. The thing is.. she's already out from her dark teenage period... so can't expect her to write things to attract current young generations. Also, I hope she's finding someone else to compose her music, not even DAI. Probly her current lyrics ain't that bad, except her music arrangement are practically the same. Electric guitar must be there, electric piano should be there, her band should be there. It's like getting old. She could have using trance/dance music or something other than rock every time.
And yes I think she's a bit more reserved lately.
Your last point is really innovative. That would surely attract general public if she really dressed like a (beautiful) homeless person..