Anyone abusing the game mechanics with multiple accounts will eventually be banned, this has happened on JP several times, where Global stands is anyone's guess.
Whilst I understand your issue in regards to the Shop, I don't think it's reasonable to expect that it be free, the game needs an income of some form and we never had such things back on PSO, we'd grind for whatever it was we wanted unless we were lucky enough to trade with somebody (a different topic altogether).
Of course, we're at the beginning of NGS, I don't think it's worth worrying about a 4 ★ with some nice preset ability, especially since we're only just getting our first elemental weapons and we have another 11 tiers of rarity to go through before we reach the pinnacle, the difference at present is negligible and bragging rights at best.
I've played JP since the beginning and much of my support came in the form of physical products that SEGA would sell, occasionally I'd sell bonus items that were included on the Shop using the Premium tickets that were included in the PC, PS4 & PS Vita Deluxe Packages.
Whilst physical merch for us may be a ways off, if we ever get any at all you could just purchase a Shop Pass or Premium once every now and again, just skip that takeaway next Saturday night and instead put it towards a 'One in a blue moon PSO2 fund' of some kind, it's not impossible nor even unreasonable to suggest as opposed to never spending a single penny.
I really do understand but I think it's unfair to expect that such features be available free of charge when the development costs for a game of this scale are enormous.
You can always ensure you do all your Daily, Weekly & Limited Tasks, along with picking up all Red Containers, Gold Containers, Alpha Reactors and plenty of other items, picking up Alpha Reactors regularly can net you a fairly decent amount of Meseta over time if you're not upgrading your gear every single time a new weapon comes out, which is pointless until we get some real content to push us combat wise.