If conservative means “cautious and wary of unexpected results”, “disillusioned with methods that we tried and failed with” or maybe even “equipped with experience of successful and failed cooperation with various sorts of people”, then yes. Already before age 50, I’m spoiled with various good and bad experiences. I cannot exclude that as my tendency to explore decreases (psychology tends to affirm this trend), I may get prejudiced too. I may have to figure out something to counter it.
But if conservative means that I suddenly don’t want a society with equality and without hierarchy, then - nope.
I will try to formulate this as well as I can:
“One should not give a platform to instances which don’t give a platform to others.”
Examples (based on hexbear):
in some communities you get banned for voting the wrong way --> other instances don’t practise banning for votes
in some communities you get banned for being “reactionary” (that is, factual - Wikipedia would get banned just as quick) --> other instances only ban bigots, not people who politely disagree with locals
in some communities, there is no obvious recourse to get a ban reviewed and reversed --> on other instances, there is a metacommunity about management or instructions about how to challenge a ban
The result: certain instances are granted a platform by others, but aren’t granting a platform to “foreigners” in return. And management habits in some places are straight from North Korea.
Defederating from an echo chamber doesn’t make your instance an echo chamber, unless you follow up by adopting the policies of the echo chamber you defederated from.