The reasons of salty community

I will just give my opinion about salty people when a new banner is realised and why we get pretty sad. I am a player who has being playing Fire Emblem since GBA era. I have played all its games and bought all its titles since then.
Its not like the new banner is just pure shit for us (honestly I still think its better than another Awakening or Fates banner). Its just that FEH has already 2 years and we still missing some love characters we met 10 years ago, when the FE community was pretty small.
And the main problem I think its the way they plann the banners. Only like 2 banners with new characters every month (by regular rules). And one of them is seasonal (with mainly FE13/14 characters).
The other one can be also (and usually is) another FE13/14 banner. And its like the only chance 1 time/month we have to see characters like Cormag is vanished month by month.
I dont know if you still spend money on this game by I used to, and there is a long time since I actually do not.
Me, like a FE8 lover Im pretty dissapointed with FEH. Its like we only got 2 banners since lunch. And I wont have the chance of getting new SS content until 2019 february... Sometimes I feel like they dont care a shit about "old players".