I found a way to nearly softlock my character

Because skills appear to have stat requirements that increase with level, and gear stats count toward the skills stat checks, it's possible to effectivley softlock a character by removing and selling the wrong gear, leaving all offensive skills except your basic attack unusable, and thus leaving you unable to fight mobs at an appropriate level.

This will not be obvious until you go and try to attack something, as there is not very clear indication that your fighting skills are unavailable in town; thus you won't be able to buy back your gear.

Since both respecs (it's realistic you may need 4 or more respecs since stat bonuses may be pretty high, god help you if you sold multiple items boosting your primary stat) and rolling for items that may have stat bonuses requires a large amount of money, and farming for that sort of money requires fighting mobs roughly your level, you're nearly softlocked, or in for an incredibly tedious grind in act 1 with only your basic weapon skill.

You could of course sell all your other gear and respec, but then you're buck naked and unarmed instead, and again in a very crappy situation, most likely having to grind for hours and hours in low level areas to get back good gear.