Summary: Sentiment on Quentin Johnston is polarized. He’s in a true camp battle for Chargers WR2/WR3 roles, with Tre Harris pushing him. The exit of Palmer (referenced as a “deep threat” who’s no longer in the team) could boost QJ’s path, but drops, route discipline, and personal improvement are the gatekeepers. He has big-play upside if he wins the job and cleans up mistakes, but the floor remains very volatile if he loses the battle or fails to be used efficiently.

2025 fantasy football outlook (concise, actionable)
- Role prospect: WR3 with chance to rise to WR2/primary deep option if he wins the camp battle and shows improvement; baseline expects limited target share behind Allen/Williams.
- Target/usage expectation (qualitative ranges): likely 40–90 targets, 400–700 receiving yards, roughly 2–6 TDs in a full season if he’s the primary deep threat and earns red-zone looks. Substantial upside if he dominates the “deep threat” role or if injuries/opening week usage favors him.
- Path to value: win the WR2/3 job in camp, prove reliable hands (fix drops), and capitalize on Herbert’s propensity for air-yard targets and red-zone opportunities.
- Floor risk: if Tre Harris wins the job or if drops persist, QJ’s role could shrink to a limited “boom-bust” deep threat with spike weeks only.
- Schedule/offense context: Chargers pass-heavy offense; Herbert’s arm and timing matter for deep shots. Availability of Allen/Williams will cap or free up QJ’s targets; if those veterans stay healthy, expectations should be tempered.
- Dynasty vs redraft: 
  - Redraft: treat as a late-round flier with high bust risk; only draft if you’re in a deep-wlex bench strategy or need a lottery ticket with weekly boom potential.
  - Dynasty: hold if you can afford the roster spot; if he fails to show big camp improvements, consider selling high or cutting if the return is poor.

Sentiment snapshot (from Reddit threads)
- Bearish signals: 
  - “Quentin Johnston is fucking horrific. You can't trust him at all.” 
  - “All Harris has to do is not be terrible and he should easily have the WR2 job, not to mention he'll probably play X.” 
  - Indication that he’s not a guaranteed breakout and there’s uncertainty about his immediate role.
- Bullish/optimistic signals: 
  - “Dude was a TD machine for a good string of games” in college; suggests red-zone potential if he refines technique.
  - “Sneaky good games last year” and potential for a Davante Adams-like resurgence if he fixes drops.
  - Comments noting the (lack of a clear deep threat in the offense) could boost QJ’s role if he progresses.
- Practical takeaway: sentiment is split; camping reports and practice reps will be decisive. The “drop issue” and route discipline are the two biggest levers for his upside.

Key discussion points to monitor (training camp and early 2025)
- Camp battles: Tre Harris vs Quentin Johnston Showdown (52:49 in the linked training camp video). Watch for:
  - Who wins more consistent snap counts in base/3-WR sets.
  - Performance in practice reps targeting QJ (hands, concentration on sideline/snaps, route discipline).
- Drops and route precision: any credible improvement in hands, route running, and separation vs press. This directly impacts Herbert’s trust and target allocation.
- Deep threat role: whether Johnston becomes the primary outside option on deep routes or if the Chargers lean on Allen/Williams/other options for consistency.
- Red-zone usage: will QJ earn red-zone targets or will those go to Allen/Williams or a TE in goal-line packages?
- Health/availability of teammates: Allen/Williams health trajectory will cap or expand QJ’s ceiling; injuries could push him into a larger share.
- Air yards vs target share: early data on air yards and target distribution will help gauge his weekly floor/ceiling.

Actionable drafting notes
- Redraft stance: don’t rely on QJ as a weekly fantasy starter until he proves camp progress and consistent usage. Consider him only as a late-round flier or a waiver-wire stash with a high weekly upside if he wins the WR2/WR3 job and drops improve.
- Dynasty stance: worth a hold if you have roster space, given the potential for a breakout if he locks down a consistent second-year role and clean target share.
- Trade/roster optimization: if he shows strong camp momentum or early-season plan to play inside/outside with consistent targets, consider trading for him if you can leverage a mid-season boost; if he looks stuck behind Harris or the veterans, be ready to move him for a clearer upgrade elsewhere.
- Immediate priorities for managers holding QJ: monitor camp reports on drops, route efficiency, and separation; track target share and red-zone opportunities in early-season games to decide whether to hold or pivot.

Bottom line
- QJ’s 2025 value hinges on winning the Chargers’ WR2/WR3 role and erasing drop issues. The consensus in Reddit is mixed: serious risk of a low floor if he doesn’t win the job, but notable upside if he cleans up technique and capitalizes on the deep-threat opportunity and Palmer’s departure. Use camp progress and early-season usage as the primary guide; don’t overcommit until you see real in-season volume and reliability.