Usual stuff, it's a cycle. Activity drops, so people don't contribute themselves, so activity drops, so people don't contirbute, so actvity drops... You need a certain userbase number to have a forum run at a consistent level, Kinktalk does not reach that level of userbase. It does not offer anything unique to make people come here, let alone stay.
If you are into kink/bdsm why would you spend any time here? Getdare, fetlife, reddit, tumblr, bdsmlr all come to mind as other options. All have significantly larger userbases, more chat, more options, more unique features etc. Why should i spend my time here? I click on every few days just to have a look at what the recent posts are, see the new albums. But if i have an idea to talk about, i immediately go to one of those more active sites.
Kinktalk needs to offer something unique, something that i can only get here! On fetlife that's local events and a focus on creating a social media-esque experience. Reddit it's about community focus and a huge reach and userbase. Tumblr is a focus on chat and blogging, same as bdsmlr but bdsmlr has no adult content restrictions. Getdare has a big and very active and creative userbase plus a good chatroom.
Kinktalk has..... er.... um.... i don't know.... And ultimately it's why i don't spend time here or really contribute much, there's no reason for me to. My limited time is better served going elsewhere that has unique features i'm looking for, and larger more active userbases.