Here's a script to display the status of showing each of the snails to [npc=201752] for the Snailspiration quests. It's split up into three separate commands due to line length limitations. It's also handy for making an in-game list of which snails count.
/run r={[74786]="Shimmershell Snail",[74948]="Amethyst Softshell",[74949]="Archetype of Vigilance",[74950]="Blackchasm Crawler",[74952]="Microlicid"};for i,v in pairs(r) do print(v,C_QuestLog.IsQuestFlaggedCompleted(i)and "Y" or "\124cFFFF0000N\124r")end
/run r={[74959]="Mudshell Conch",[74960]="Predatory Helicid",[74961]="Prismatic Softshell",[74962]="Rapana Whelk",[74963]="Rusty Snail"};for i,v in pairs(r) do print(v,C_QuestLog.IsQuestFlaggedCompleted(i)and "Y" or "\124cFFFF0000N\124r")end
/run r={[74964]="Scooter the Snail",[74965]="Shelly",[74966]="Silkbead Snail",[74967]="Spireshell Snail",[74968]="Zoom"};for i,v in pairs(r) do print(v,C_QuestLog.IsQuestFlaggedCompleted(i)and "Y" or "\124cFFFF0000N\124r")end