I would love to be more involved in this community but I rarely have time for any substantial contributions much less an RP.
As it so happens, I did make an "Ask Atom" blog on Tumblr and I managed it for a good many of months with a slow, but steady flow of questions (even if some users abused it to try and talk to me personally concerning some issues here on the site as my personal tumblr has the anon option disabled). It was never used for RP though, I don't even really understand how Role Playing works on Tumblr. I used to be an avid text roleplayer back in high school but have dropped out of doing it.
It would be really fun to start back up again!
However, I have been super busy and I feel bad for not being able to be as active in the fandom as I had wished and planned for. So thus this may not be a really good option for me at the moment. But it does remind me that I should check into that Atom Blog I made.
Here it is, btw
http://atom-at-the-ministry-of-science.tumblr.com/I couldn't make up my mind whether I wanted to make a science blog or an Atom blog so I merged them, fueling a head canon that Atom in the 2003 series would have been more involved in the Ministry of Science than depicted.