What do you think of this? (Making seasonal events not sellable on MB)

[Ariane]

It's not double-dipping; the reason they offered those items from a vendor is because they were old 1.0 items, and the devs realized it would be unfair to expect people to have obtained them with all the issues and reputation 1.0 had. Once they moved onto ARR events though, everyone is considered to have had a "fair" chance to obtain it legitimately, so if you missed out, you missed out.

Not true. Not all the swimsuits were in 1.0. The striped and summer morning ones were new for the first moonfire event (2013) during ARR. Then on the next year for the 2014 moonfaire there was a vendor that sold the 2013 ARR swimsuits.

[Emstidor]

Yeah, but Moonfire 2013 was literally the first event of ARR, so it still doesn't change my point too much. SE gave people a "window" of several months after ARR during which you could come back and still not miss anything exclusive. Once ARR was established, any events after that window gave items that wouldn't be reobtainable.