I play with some fairly frequent "Flailsnailers", but I myself, have never done such.
I do see the appeal, even if it holds little for me.
See, if you have limited game time available to use and a steady group, there is little need for Flailsnailing.
As a DM, my group and myself vet any guest players into our sessions. As the campaigns we play have core sets or characters, I am likely to review any new PC coming in to see how well they fit and if any adjustments are needed - the inherit occasional FS wackiness is generally not an added feature I'm looking for (that being said, I can see it fit well into certain styles of campaigns).
As a player, I don't have the free time to bounce from game to game, system to system. My time to play is limited and scheduled well in advance, much like my DMing
Now, without a steady group and an abundance of free time, I can certainly see the appeal of Flailing One's Snail, as it were.
I can also see how it would work well as an underlining conversion set of rules for an OSR styles online con, where players could bring their own characters to the game and not use a pregen. There certainly is a lot to say for that use.
Tenkar's Tavern is supported by various affiliate programs, including Amazon, RPGNow, and Humble Bundleas well asPatreon. Your patronage is appreciated and helps keep the lights on and the taps flowing - Your Humble Bartender, Tenkar
Tenkar's Tavern Discord Server Events - link - https://discord.gg/fReGmuD - Click to embiggen