Hive and Steem are very fringe I think you mean. Parler is rank 218 for USA websites and 1,918 for world wide websites, and people are signing up by tens of thousands to hundreds of thousands per day. More people signed up to be on Parler in a few days than the entirety of Steem/Hive.
I have tried commenting on youtube about steem/hive and on reddit, it gets censored. Might have to find creative ways of pointing ppl here to get by that.
RE: 8 months on Hive no explosive growth, same problems from Steem.. Parler exploded hugely compartively.