I see three major cults.
1) Bitcoin
2) Dogecoin
3) Proof-of-Stake (most members are invested in all of these projects: NXT, NEM, BitsharesX, Qora, Crypti, NODE or at least in three out of six in various proportions)
Wanna-be cults, but not quite there yet:
a) Monero
b) and I guess that's it... feel free to propose your vision

being part of coin community almost as a cult is nothing bad. What is bad and OP mention is, that many on this forum, just don't accept any criticism.
and some others just make fun of readers. and continuously spam other coins topics, or even make new topics where they beg, that people dont start topics as they start them.
I do not understand why Forum moderators allow, that some make fun from Forum readers. is so obvious. Dos no one care? No one report or moderators just don't care and dont delete and punish.
Everyone is a shill for whatever Cryptocurrency they own or support. Even I am guilty of that myself, although I try my best to remain objective nonetheless.
Some people are much worse than others though, over time you will figure out the people that are subjective and the people that are objective, and form your opinions with this in mind. It can take a long time to learn people's posting habits though, and it requires a lot of reading. If you don't spend a lot of time in these subforums I would take everything you read with a grain of salt.
I dont know who on earth convinced people here, that support coin that you hold is bad. Of course it is your duty to tell as many people as you can about it. Tell everyone good things of coin you hold.
But yes also accept criticism. And answer on them as much as you can. I am sure it become a bit to much answering same question all the time.
And you don't need to hijack other coins topics and continuously spam there. And you don't need to make numerous topics complaining over other coins.
You have your coin and you have all right to tell everyone on the world that your coin is most beautiful and most smartest and well your little baby.