I used Parler for a while. About 5-6 months on and off.
In my opinion, Parler is not suited for anyone who considers themselves a fan of Blockland. It's content is almost entirely political, and homogeneous at that. There isn't much to look at when it comes to memes, video game media, movie media, or anything like that. ANd even when there are, it's still politically charged; something along the lines of "Boycott X because it is Y or supports Z".
I'm not trying to discourage people from using it, I just don't think anyone here would have a fun time getting invested in it, unless they're invested in politics... That is, unless a bunch of Blocklanders trail-blazed a new sub-culture on Parler and started posted original, funny, new esoteric memes. Now that would get me back in!