Maybe.
No seriously, I've noticed the bias on forums towards university age people before and it reflects the age of the people who go to UK conventions.
I read there's three demographcs at conventions and expos in both the UK and the USA.
1 - younger fans aged 12-19, who are into the most popular shonen series, give out free hugs and carry signs offering 'free rape' lol
2 - early 20s, who are more serious about cosplay, spend the most on anime manga and merchandise, and spend a fortune drinking at the bar (especially in the UK)
3 - older fans who are interested mainly in older series from their youths, and 'go in and get out' without interacting with younger fans
The older fans are dismissive of both groups of younger fans but it isn't really returned against them because they don't hang around telling younger people what to do. There's actually more tension on the forums between the the early 20s (or late teens and early 20s) demographic and the younger fans, but also a lot more overlap between them than some people might think.