i like your answer, ingrate.
s9888: i don't know about those "definitions". mutual aid and individual freedom - while both are clearly major aspects of any anarchist perspective i have affinity with - are for me not nearly so co-dependent as those imply. i also find both definitions far too limited. you seem to be using those 2 terms as correlaries for each other, and i don't see them that way. but i strongly agree with your dichotomy sentiment.
for me (very broadly speaking), a key difference is that individualist @s see the individual as the primary/central actor and priority, while social @s see the social grouping (community, collective, whatever) as the primary/central actor and priority. both can value mutual aid as well as individual freedom, without one of those being dependent on the other.