Long-time Thunderbird users: what actually keeps you here over Outlook or Gmail?
I've been running Thunderbird for years and the other day I caught myself wondering why I never actually left. Every so often I test-drive something else. Tried the new Outlook, messed with Gmail's web setup for a month, even a couple of the newer clients people keep hyping. I always end up back here within a week.
For me it comes down to a few things. Local storage, so my mail isn't hostage to whatever some company decides. Point it at any IMAP account and it just works. Filters that do exactly what I tell them instead of some "smart" sorting I never asked for. And nobody nags me to upgrade to a plan.
But I'm more curious about people who've stuck with it way longer than I have. What's the actual reason you stay on Thunderbird instead of moving to Outlook or Gmail? One killer feature, the add-ons, or just habit at this point?
And the other side of it: what do you still wish it did? For me the mobile situation feels half-baked and threading gets messy on big mailing lists. No idea if that's just my setup or something everyone runs into.
Not trying to start a client war. I just genuinely want to know what makes people stick with this thing after all these years.