Yes, saw it today as well on the way up to my 'plantations'. IMHO, no it's not getting more active, quite a few vents have been altered or weathered, washed out by river flooding and mechanically changed by recent civil works on the Okoy river bed. If it's only steam and mud, then I wouldn't worry. If it's molten rock, well yeah maybe I'd go up there via San Antonio, Sibulan.
"Cancer is a word, not a sentence." ~John Diamond
"Keep your face to the sunshine and you cannot see the shadow." ~Helen Keller
"Courage is being scared to death and saddling up anyway." ~John Wayne