This thread amuses me, but I didn't get past Page 3 mind.
I basically only ever use one character, all the time, and he's not a Tamer per say. For a shortwhile he carried 30 Taming & 30 Lore (6 Elder's, had spare points for something random), and still clings onto some points.
The amount of times I have to decide over a Beetle, Blue Ostard and a Mongbat (For my entertainment), or even a pet Eagle on occasions, is annoying. I'd like to see a couple more storage slots for RP/General Fun Factor purposes, why the constraint I say.
After reading some good views at the start of the thread, I realise I have no qualms with the true Tamers having stacks more space, they are welcome to it... it must drive THEM up the wall only having a G.Dragon and a Beetle tamed at any time, or a Nightmare and Hiryu... they have it bad, I think.
I dunno if it would lead to flooding of Events with the same pets, since everyone can pick from their whole range of Trained Pets for the occasion to be the most effective. For example, if whatever reason an Event called for Dragons (based on the monsters we'll confront) to be most effective, EVERYONE would show up with them... would kinda suck :/ But it's hypothetical anyway.
That's my opinions and thoughts.