I would be harsh because they are leading people astray. When the dead in Christ rise, all those pre-tribbers ppl going to say...um, thought we going to vanish? the they will be taking the mark of the beast thinking it's a good thing cos, you know, Jesus protects us from all of that, they'll probably think, oh, mark means Jesus coming for US. Cos they don't believe a mark will happen at all, only when they gone. What fools!
How wrong will they be. Wise up.
Recently heard some professed christians thinking tattoos were a good thing, and to get them cos they cool and witnessing tool. Um hello?
They will think..oh mark means we will live. They won't be prepared to die, cos they love their own lives way too much.
See, God isn't fooled. He knows that if you truly believe, there is NOTHING to fear. Whether we live or die, we belong to Him, but satan can always tempt those weak christians who just will not stand or contend for the faith once delivered to the saints.
Satan sure can pull the wool over the sheep's eyes on this one, using rapture as some kind of end-time hysteria thing, when, those who have faith, just go on with their lives living for Jesus without constantly worrying about escape plans. I know he will come for us all at the LAST day. When the trumpets sounds.
Shalom.