There's a cost factor to everything, the journal isn't printed free and the postage isnt free, the hosting of the site isnt free, and nor was the work done to find this species.
The trips that the BTS go on (this species was not found by a member of the BTS) are paid by themselves, infact one such trip was the honeymoon of two committee members. And, just like everyone else who is a member of BTS they too have to pay for their membership.
I can assure you that the monies received through the journals and the expo go directly to funding the society and creating both the journal and the expo in May. And the monies received for the lectures goes directly to paying for the conference rooms and speakers.
Without such funding we won't have a BTS, and going by the figures I heard last year and this year the society is in need of more funds. That's one of the reasons why the journal has now reduced from 4 to 3 per year, although the number of pages in total is still the same.
You can expect everything for free if that suits, but such thought is really only depriving and threatening the activity of someone else.