In case you aren’t aware I should point out that you can upgrade your OCD without donating any money to the server. The first level is free to everyone and it can then be upgraded with in-game credits (and you also get free credits every day with HWS connect daily loot and voting ).
You can be upgraded to OCD level 3 in about a week just with the free daily loot and voting.
In one season you can store more things in there than you will ever use, without any donations (and as a lone player.)
You have to at least level up to the point you can leave the starter each season before you can collect from it. It’s a little overpowered, yes, but is still essential at this point in the game to handle certain bugs.